{"title":"BEYOND SC INSERT Internal Boring Bar","description":"\u003cstyle\u003e\n.th-wrap { font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, sans-serif; color: #2b2b2b; line-height: 1.65; max-width: 1080px; margin: 0 auto; }\n.th-wrap * { box-sizing: border-box; }\n.th-wrap h1 { font-size: 30px; color: #003478; border-bottom: 3px solid #003478; padding-bottom: 12px; margin-bottom: 22px; font-weight: 700; line-height: 1.25; }\n.th-wrap h2 { font-size: 24px; color: #003478; margin-top: 38px; padding-left: 14px; border-left: 6px solid #003478; font-weight: 700; line-height: 1.25; }\n.th-wrap h3 { font-size: 18px; color: #1a1a1a; margin-top: 22px; font-weight: 700; }\n.th-wrap h4 { font-size: 15px; color: #555; text-transform: uppercase; letter-spacing: .04em; font-weight: 700; margin: 0 0 6px; }\n.th-wrap p { margin: 0 0 14px; }\n.th-wrap a { color: #003478; text-decoration: none; border-bottom: 1px dotted #003478; }\n.th-wrap a:hover { color: #1a1a1a; border-bottom-color: #1a1a1a; }\n.th-wrap ul, .th-wrap ol { padding-left: 24px; margin: 0 0 16px; }\n.th-wrap li { margin: 4px 0; }\n.th-section { background: #e6eef7; padding: 26px 28px; border-radius: 8px; margin: 24px 0; border: 1px solid #c8d8e8; }\n.th-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 18px 0; }\n.th-card { background: #fff; border: 1px solid #e0d4d4; border-radius: 8px; padding: 14px 16px; transition: transform .15s; }\n.th-card:hover { transform: translateY(-2px); box-shadow: 0 4px 10px rgba(0,52,120,.08); }\n.th-card .price { color: #1a1a1a; font-weight: 700; font-size: 14px; margin-top: 6px; }\n.th-card .meta { color: #666; font-size: 12px; margin-top: 4px; }\n.th-stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin: 18px 0; }\n.th-stat { background: #fff; border: 1px solid #e0d4d4; border-radius: 8px; padding: 14px; text-align: center; }\n.th-stat .num { font-size: 26px; font-weight: 800; color: #003478; line-height: 1; }\n.th-stat .label { font-size: 12px; color: #555; margin-top: 6px; }\n.th-table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px; }\n.th-table th, .th-table td { padding: 10px 12px; border: 1px solid #e0d4d4; text-align: left; }\n.th-table th { background: #003478; color: #fff; font-weight: 600; }\n.th-table tr:nth-child(even) td { background: #e6eef7; }\n.th-cta { background: #003478; color: #fff; padding: 28px; border-radius: 8px; text-align: center; margin: 28px 0; }\n.th-cta a { color: #ffd86b; border-bottom-color: #ffd86b; font-weight: 600; }\n.th-cta h2 { color: #fff; border-left-color: #ffd86b; padding-left: 14px; }\n.th-code { font-family: 'Consolas', 'Courier New', monospace; background: #f5f5f5; padding: 2px 6px; border-radius: 3px; font-size: 13px; color: #003478; }\n.th-warn { background: #fff0f0; border: 2px solid #d32f2f; padding: 22px 26px; border-radius: 8px; margin: 24px 0; }\ndetails { background: #fff; border: 1px solid #e0d4d4; border-radius: 8px; padding: 12px 16px; margin: 10px 0; }\ndetails summary { font-weight: 600; color: #003478; cursor: pointer; padding: 4px 0; }\ndetails[open] summary { margin-bottom: 8px; }\ndetails p { margin: 8px 0; color: #2b2b2b; }\n\u003c\/style\u003e\n\u003cdiv class=\"th-wrap\"\u003e\n\u003c!-- HERO --\u003e\n\u003cdiv style=\"background: #e6eef7; padding: 32px 28px; border-radius: 10px; border: 1px solid #c8d8e8; margin-bottom: 24px;\"\u003e\n\u003ch1 style=\"color: #003478; border-bottom: 3px solid #003478; padding-bottom: 12px; margin-bottom: 18px; font-size: 30px; font-weight: bold;\"\u003eBEYOND SC INSERT Internal Boring Bar — ISO 1832 90° Square Screw-Clamp Holders (7° Positive)\u003c\/h1\u003e\n\u003cp style=\"font-size: 16px; color: #1a1a1a; margin: 0 0 14px;\"\u003eBEYOND SC INSERT Internal Boring Bars — Round-Shank Holders for 90° Square SCMT\/SCGT Inserts (7° Positive Relief)\u003c\/p\u003e\n\u003cp style=\"font-size: 15px; color: #1a1a1a; margin: 0 0 8px;\"\u003e25 BEYOND SC INSERT Internal Boring Bar SKUs Across 5 Shank Diameters (12\/16\/20\/25\/32 mm) for Internal Turning with SCMT\/SCGT Inserts (7° Positive Relief)\u003c\/p\u003e\n\u003cdiv class=\"th-stat-grid\"\u003e\n\u003cdiv class=\"th-stat\"\u003e\n\u003cdiv class=\"num\"\u003e25\u003c\/div\u003e\n\u003cdiv class=\"label\"\u003eBEYOND Boring Bar SKUs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-stat\"\u003e\n\u003cdiv class=\"num\"\u003e4\u003c\/div\u003e\n\u003cdiv class=\"label\"\u003eUnique 5-Letter Codes\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-stat\"\u003e\n\u003cdiv class=\"num\"\u003e6\u003c\/div\u003e\n\u003cdiv class=\"label\"\u003eShank Diameters (mm)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-stat\"\u003e\n\u003cdiv class=\"num\"\u003e6\u003c\/div\u003e\n\u003cdiv class=\"label\"\u003eLength Codes\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin: 18px 0 0; font-size: 14px; color: #555;\"\u003eBrowse the \u003ca href=\"\/collections\/sc-insert-internal\"\u003efull BEYOND Screw-On System Boring Bar catalog\u003c\/a\u003e, or jump to: \u003ca href=\"#about\"\u003eAbout\u003c\/a\u003e · \u003ca href=\"#shank-spec\"\u003eShank Spec Decode\u003c\/a\u003e · \u003ca href=\"#code-table\"\u003e5-Letter Code Reference\u003c\/a\u003e · \u003ca href=\"#all-products\"\u003eAll Products\u003c\/a\u003e · \u003ca href=\"#faq\"\u003eFAQ\u003c\/a\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- BORING BAR VS EXTERNAL DIFFERENTIATION --\u003e\n\u003cdiv class=\"th-warn\"\u003e\n\u003ch2 style=\"color: #d32f2f; border-left: 6px solid #d32f2f; padding-left: 14px; margin-top: 0;\"\u003e🔍 Internal Boring Bar vs External Turning Holder — Critical Differences\u003c\/h2\u003e\n\u003cp style=\"font-size: 15px; color: #5a0000;\"\u003eBoring bars (internal turning tool holders) and external turning holders have \u003cstrong\u003edifferent shank specifications\u003c\/strong\u003e but share the same ISO 1832 5-letter insert interface code.\u003c\/p\u003e\n\u003ctable class=\"th-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eExternal Turning Holder\u003c\/th\u003e\n\u003cth\u003eInternal Boring Bar (this catalog)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank shape\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSquare (mm × mm)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eRound (single mm diameter)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition 2-3\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eShank height × width (e.g. 2525 = 25×25 mm)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eShank diameter (e.g. 06 = 6 mm round)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition 4\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eShank length code (H\/K\/M\/P\/Q)\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eShank length code\u003c\/strong\u003e (H\/J\/K\/M\/Q) — typically shorter than external\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTypical sizes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 \/ 20 \/ 25 \/ 32 mm square\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e6 \/ 8 \/ 10 \/ 12 \/ 16 \/ 20 \/ 25 \/ 32 mm round\u003c\/strong\u003e (smaller for small holes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition 5\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eShank width (mm)\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSeparator \"-\"\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePosition 6-10 (5-letter code)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eClamp + Shape + Approach + Relief + Hand\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eSame 5-letter code\u003c\/strong\u003e (SCLCR \/ SDJCR \/ STUBR etc.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsert IC code\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 \/ 16 \/ 19 \/ 22 \/ 25 mm (larger)\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e06 \/ 07 \/ 08 \/ 09 \/ 11 \/ 12 mm\u003c\/strong\u003e (smaller for small holes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOptional -A## suffix\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eMinimum bore diameter\u003c\/strong\u003e (e.g. A12 = 12 mm min bore, for stepped \/ anti-vibration bars)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTurning the OUTER diameter of workpiece\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eTurning the INNER diameter\u003c\/strong\u003e (boring a hole from inside)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsert side\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInsert's top rake faces OUTWARD on the shank's top\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eInsert's top rake faces INWARD\u003c\/strong\u003e — chip flow goes UP\/OUT through the bore\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoolant\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eOften without\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eCoolant-through is standard\u003c\/strong\u003e for chip evacuation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"font-size: 13px; color: #5a0000; margin-bottom: 0;\"\u003e\u003cstrong\u003eCritical note:\u003c\/strong\u003e A boring bar and an external turning holder with the same 5-letter code (e.g. SCLCR) have \u003cstrong\u003edifferent shank diameters and lengths\u003c\/strong\u003e. They are NOT interchangeable — you cannot use a boring bar on an external turning job, nor an external holder inside a bore.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- BEYOND AUTHENTICITY --\u003e\n\u003cdiv class=\"th-section\" style=\"background: #fff8e1; border: 1px solid #ffa000;\"\u003e\n\u003ch2 style=\"color: #b07000; border-left-color: #ffa000;\"\u003eBEYOND-Original Boring Bars from Hangzhou, China\u003c\/h2\u003e\n\u003cp\u003eAll 25 boring bars in this catalog are \u003cstrong\u003e100% genuine BEYOND\u003c\/strong\u003e — manufactured by BEYOND in Hangzhou, China. Each boring bar is CNC-machined from premium alloy steel (DIN 1.3343 \/ AISI M2 equivalent), heat-treated to HRC 60-62, and precision-ground for shank and pocket tolerances within ±0.01mm. Most boring bars include \u003cstrong\u003einternal coolant channels\u003c\/strong\u003e (coolant-through design) for efficient chip evacuation during deep boring operations. Many models feature \u003cstrong\u003eanti-vibration damping\u003c\/strong\u003e for chatter-free boring at overhangs up to 6× shank diameter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ABOUT --\u003e\n\u003cdiv class=\"th-section\"\u003e\n\u003ch2 id=\"about\"\u003eAbout BEYOND Screw-On System Boring Bars\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eBoring bars (internal turning tool holders)\u003c\/strong\u003e are designed to reach inside a pre-existing hole and enlarge it or finish the inner surface to a precise diameter. They have \u003cstrong\u003eround shanks\u003c\/strong\u003e (not square like external holders) so they can fit through the bore opening, and they typically feature \u003cstrong\u003einternal coolant channels\u003c\/strong\u003e for chip evacuation through the bar itself.\u003c\/p\u003e\n\u003cp\u003eThis catalog contains \u003cstrong\u003e25 BEYOND boring bar SKUs\u003c\/strong\u003e across 4 unique 5-letter codes, 6 shank diameter options, and 6 length codes. All holders are screw-clamp (the dominant clamping system for boring bars) with standard ISO 1832 5-letter insert interface codes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBEYOND 9-Position Boring Bar Code Structure (per official catalog):\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable class=\"th-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003ePosition\u003c\/th\u003e\n\u003cth\u003eSymbol\u003c\/th\u003e\n\u003cth\u003eMeaning\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"th-code\"\u003eS\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eBoring bar round-shank indicator\u003c\/strong\u003e — the \"S\" prefix designates a round-shank boring bar (vs. square-shank external holder). Internal coolant-through design is standard.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e2-3\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"th-code\"\u003e06 · 08 · 10 · 12 · 16 · 20 · 25 · 32\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eShank diameter (mm)\u003c\/strong\u003e — single mm value (round shank, not height×width). Smaller diameters (06\/08\/10) are for tight bores; larger (25\/32) for heavy roughing.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"th-code\"\u003eH · J · K · M · N · Q · R · S\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eShank length code\u003c\/strong\u003e — 24 letters A-Y encoding 32-500mm. Common boring bar lengths: \u003cspan class=\"th-code\"\u003eH\u003c\/span\u003e=100mm \/ \u003cspan class=\"th-code\"\u003eJ\u003c\/span\u003e=110mm \/ \u003cspan class=\"th-code\"\u003eK\u003c\/span\u003e=125mm \/ \u003cspan class=\"th-code\"\u003eM\u003c\/span\u003e=150mm \/ \u003cspan class=\"th-code\"\u003eQ\u003c\/span\u003e=180mm \/ \u003cspan class=\"th-code\"\u003eR\u003c\/span\u003e=200mm.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e5\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"th-code\"\u003e-\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eSeparator dash\u003c\/strong\u003e between shank spec and 5-letter code.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e6-10\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"th-code\"\u003eS · M · C · D · P · A · W\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003e5-letter ISO 1832 code (same as external holders)\u003c\/strong\u003e — Pos 6 = clamping mode, Pos 7 = insert shape, Pos 8 = approach angle, Pos 9 = relief angle, Pos 10 = hand direction.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e11\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"th-code\"\u003e06 · 07 · 08 · 09 · 11 · 12\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eInsert IC code\u003c\/strong\u003e — 06 = 6.35mm \/ 07 = 7.94mm \/ 08 = 7.94mm \/ 09 = 9.525mm \/ 11 = 11.0mm \/ 12 = 12.7mm. Boring bars typically use SMALLER inserts than external holders (06\/08\/11 are common for boring).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e12+\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"th-code\"\u003e-A## (optional)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\n\u003cstrong\u003eMinimum bore diameter code\u003c\/strong\u003e — only present on stepped\/anti-vibration bars. e.g. \u003cspan class=\"th-code\"\u003e-A12\u003c\/span\u003e = 12mm minimum bore diameter.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- SHANK SPEC DECODE --\u003e\n\u003cdiv class=\"th-section\"\u003e\n\u003ch2 id=\"shank-spec\"\u003eBoring Bar Shank Specification Distribution\u003c\/h2\u003e\n\u003cp\u003eBEYOND boring bars are available in 6 shank diameters — from 6mm (for tight bores) to 32mm (for heavy roughing). The shank must be smaller than the bore being machined, leaving clearance for chip evacuation on the shank's underside.\u003c\/p\u003e\n\u003ctable class=\"th-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eShank Diameter\u003c\/th\u003e\n\u003cth\u003eSKU Count\u003c\/th\u003e\n\u003cth\u003eTypical Use Case\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e12 mm round shank\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eFor boring holes as small as ~14-20 mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e14 mm round shank\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003ctd\u003eFor boring holes as small as ~16-22 mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e16 mm round shank\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eFor boring holes as small as ~18-24 mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e20 mm round shank\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eFor boring holes as small as ~22-28 mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e25 mm round shank\u003c\/td\u003e\n\u003ctd\u003e6\u003c\/td\u003e\n\u003ctd\u003eFor boring holes as small as ~27-33 mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e32 mm round shank\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003ctd\u003eFor boring holes as small as ~34-40 mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- CODE REFERENCE --\u003e\n\u003cdiv class=\"th-section\"\u003e\n\u003ch2 id=\"code-table\"\u003e5-Letter Insert Interface Codes\u003c\/h2\u003e\n\u003cp\u003eDespite being boring bars (internal), the 5-letter ISO 1832 code follows the same convention as external turning holders. Each card below shows one 5-letter code with its decoding and SKU count.\u003c\/p\u003e\n\u003cdiv class=\"th-cards\"\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003eSSKCR — Square 90°-shape\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eScrew-Clamp + 75°° approach + 7° positive° positive relief + Right-hand\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003e8 SKUs · ISO 1832 SC INSERT\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003eSSSCR — Square 90°-shape\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eScrew-Clamp + 45°° approach + 7° positive° positive relief + Right-hand\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003e5 SKUs · ISO 1832 SC INSERT\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003eSSSCL — Square 90°-shape\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eScrew-Clamp + 45°° approach + 7° positive° positive relief + Left-hand\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003e5 SKUs · ISO 1832 SC INSERT\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003eSSKCL — Square 90°-shape\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eScrew-Clamp + 75°° approach + 7° positive° positive relief + Left-hand\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003e4 SKUs · ISO 1832 SC INSERT\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- FEATURED PRODUCTS --\u003e\n\u003cdiv class=\"th-section\"\u003e\n\u003ch2 id=\"featured\"\u003eFeatured BEYOND Screw-On System Boring Bars\u003c\/h2\u003e\n\u003cp\u003eTop featured boring bars from this collection — click any to view product details, insert specifications, and add to cart.\u003c\/p\u003e\n\u003cdiv class=\"th-cards\"\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003e\u003ca href=\"\/products\/beyond-s16q-ssscr09-boring-bar-holder\"\u003eBEYOND S16Q-SSSCR09 Boring Bar | 16mm CNC Lathe Internal Turning Tool Holder for…\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eBEYOND · 16mm-shank · 75-degree · alloy-steel\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003eS16Q-SSSCR09\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003e\u003ca href=\"\/products\/beyond-s12m-ssscl09-left-hand-boring-bar\"\u003eBEYOND S12M-SSSCL09 Left Hand Boring Bar | 12mm CNC Lathe Internal Turning Tool …\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eBEYOND · 12mm-shank · 75-degree · alloy-steel\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003eS12M-SSSCL09\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003e\u003ca href=\"\/products\/beyond-s32t-sskcr12-boring-bar-holder\"\u003eBEYOND S32T-SSKCR12 Heavy Duty Boring Bar | 32mm CNC Lathe Internal Turning Tool…\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eBEYOND · 32mm Shank · 75 Degree · Alloy Steel\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003eS32T-SSKCR12\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003e\u003ca href=\"\/products\/beyond-s32t-sskcr09-boring-bar-holder\"\u003eBEYOND S32T-SSKCR09 Heavy Duty Boring Bar | 32mm CNC Lathe Internal Turning Tool…\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eBEYOND · 32mm Shank · 75 Degree · Alloy Steel\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003eS32T-SSKCR09\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003e\u003ca href=\"\/products\/beyond-s25s-sskcr12-boring-bar-holder\"\u003eBEYOND S25S-SSKCR12 Heavy Duty Boring Bar | 25mm CNC Lathe Internal Turning Tool…\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eBEYOND · 25mm Shank · 75 Degree · Alloy Steel\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003eS25S-SSKCR12\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003e\u003ca href=\"\/products\/beyond-s25s-sskcl09-boring-bar-holder\"\u003eBEYOND S25S-SSKCL09 Boring Bar | 25mm CNC Lathe Left Hand Internal Turning Tool …\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eBEYOND · 25mm Shank · 75 Degree · Alloy Steel\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003eS25S-SSKCL09\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- ALL PRODUCTS TABLE (truncated to fit Shopify 64 KB description cap) --\u003e\n\u003cdiv class=\"th-section\"\u003e\n\u003ch2 id=\"all-products\"\u003eSample 30 of 25 BEYOND Boring Bar SKUs\u003c\/h2\u003e\n\u003cp\u003eShowing top 30 boring bars — \u003cstrong\u003eview the complete 25-product catalog at \u003ca href=\"\/collections\/sc-insert-internal\"\u003e\/collections\/sc-insert-internal\u003c\/a\u003e\u003c\/strong\u003e or use the search function for specific codes.\u003c\/p\u003e\n\u003ctable class=\"th-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProduct Handle\u003c\/th\u003e\n\u003cth\u003eTitle (preview)\u003c\/th\u003e\n\u003cth\u003eSKU Code\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s16q-ssscr09-boring-bar-holder\"\u003ebeyond-s16q-ssscr09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S16Q-SSSCR09 Boring Bar | 16mm CNC Lathe Internal Turning Tool …\u003c\/td\u003e\n\u003ctd\u003eS16Q-SSSCR09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s12m-ssscl09-left-hand-boring-bar\"\u003ebeyond-s12m-ssscl09-left-hand-boring-bar\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S12M-SSSCL09 Left Hand Boring Bar | 12mm CNC Lathe Internal Tur…\u003c\/td\u003e\n\u003ctd\u003eS12M-SSSCL09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s32t-sskcr12-boring-bar-holder\"\u003ebeyond-s32t-sskcr12-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S32T-SSKCR12 Heavy Duty Boring Bar | 32mm CNC Lathe Internal Tu…\u003c\/td\u003e\n\u003ctd\u003eS32T-SSKCR12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s32t-sskcr09-boring-bar-holder\"\u003ebeyond-s32t-sskcr09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S32T-SSKCR09 Heavy Duty Boring Bar | 32mm CNC Lathe Internal Tu…\u003c\/td\u003e\n\u003ctd\u003eS32T-SSKCR09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s25s-sskcr12-boring-bar-holder\"\u003ebeyond-s25s-sskcr12-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S25S-SSKCR12 Heavy Duty Boring Bar | 25mm CNC Lathe Internal Tu…\u003c\/td\u003e\n\u003ctd\u003eS25S-SSKCR12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s25s-sskcl09-boring-bar-holder\"\u003ebeyond-s25s-sskcl09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S25S-SSKCL09 Boring Bar | 25mm CNC Lathe Left Hand Internal Tur…\u003c\/td\u003e\n\u003ctd\u003eS25S-SSKCL09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s20r-sskcr09-boring-bar-holder\"\u003ebeyond-s20r-sskcr09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S20R-SSKCR09 Boring Bar | 20mm CNC Lathe Right Hand Internal Tu…\u003c\/td\u003e\n\u003ctd\u003eS20R-SSKCR09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s20r-sskcl09-boring-bar-holder\"\u003ebeyond-s20r-sskcl09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S20R-SSKCL09 Left Hand Boring Bar | 20mm CNC Lathe Internal Tur…\u003c\/td\u003e\n\u003ctd\u003eS20R-SSKCL09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s16q-sskcr09-boring-bar-scmt09t3-internal-turning-tool-holder\"\u003ebeyond-s16q-sskcr09-boring-bar-scmt09t3-internal-turning-tool-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S16Q-SSKCR09 Heavy-Duty 16mm Shank 180mm Length Screw-Down CNC …\u003c\/td\u003e\n\u003ctd\u003eS16Q-SSKCR09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s16q-sskcl09-boring-bar-holder\"\u003ebeyond-s16q-sskcl09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S16Q-SSKCL09 Left Hand Boring Bar | 16mm CNC Lathe Internal Tur…\u003c\/td\u003e\n\u003ctd\u003eS16Q-SSKCL09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s14n-sskcr09-boring-bar-holder\"\u003ebeyond-s14n-sskcr09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S14N-SSKCR09 Boring Bar | 14mm CNC Lathe Right Hand Internal Tu…\u003c\/td\u003e\n\u003ctd\u003eS14N-SSKCR09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s12m-sskcr09-boring-bar-holder\"\u003ebeyond-s12m-sskcr09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S12M-SSKCR09 Boring Bar | 12mm CNC Lathe Right Hand Internal Tu…\u003c\/td\u003e\n\u003ctd\u003eS12M-SSKCR09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s12m-sskcl09-boring-bar-holder\"\u003ebeyond-s12m-sskcl09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S12M-SSKCL09 Left Hand Boring Bar | 12mm CNC Lathe Internal Tur…\u003c\/td\u003e\n\u003ctd\u003eS12M-SSKCL09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s25s-sskcr09-boring-bar-holder\"\u003ebeyond-s25s-sskcr09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S25S-SSKCR09 Boring Bar | 25mm CNC Lathe Right Hand Internal Tu…\u003c\/td\u003e\n\u003ctd\u003eS25S-SSKCR09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/s32t-ssscl09-boring-bar-tool-holder\"\u003es32t-ssscl09-boring-bar-tool-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S32T-SSSCL09 Left Hand Heavy Duty Boring Bar | 32mm CNC Lathe I…\u003c\/td\u003e\n\u003ctd\u003eS32T-SSSCL09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/s25s-ssscr12-heavy-duty-boring-bar-tool-holder\"\u003es25s-ssscr12-heavy-duty-boring-bar-tool-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S25S-SSSCR12 Heavy Duty Boring Bar | 25mm CNC Lathe Internal Tu…\u003c\/td\u003e\n\u003ctd\u003eS25S-SSSCR12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s25s-ssscr09-boring-bar-holder\"\u003ebeyond-s25s-ssscr09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S25S-SSSCR09 Boring Bar | 25mm CNC Lathe Internal Turning Tool …\u003c\/td\u003e\n\u003ctd\u003eS25S-SSSCR09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s25s-ssscl09-boring-bar-holder\"\u003ebeyond-s25s-ssscl09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S25S-SSSCL09 Left Hand Boring Bar | 25mm CNC Lathe Internal Tur…\u003c\/td\u003e\n\u003ctd\u003eS25S-SSSCL09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s20r-ssscr09-boring-bar-holder\"\u003ebeyond-s20r-ssscr09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S20R-SSSCR09 Boring Bar | 20mm CNC Lathe Internal Turning Tool …\u003c\/td\u003e\n\u003ctd\u003eS20R-SSSCR09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s20r-ssscl09-left-hand-boring-bar\"\u003ebeyond-s20r-ssscl09-left-hand-boring-bar\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S20R-SSSCL09 Left Hand Boring Bar | 20mm CNC Lathe Internal Tur…\u003c\/td\u003e\n\u003ctd\u003eS20R-SSSCL09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s16q-ssscl09-left-hand-boring-bar\"\u003ebeyond-s16q-ssscl09-left-hand-boring-bar\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S16Q-SSSCL09 Left Hand Boring Bar | 16mm CNC Lathe Internal Tur…\u003c\/td\u003e\n\u003ctd\u003eS16Q-SSSCL09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s14n-ssscr09-boring-bar-holder\"\u003ebeyond-s14n-ssscr09-boring-bar-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S14N-SSSCR09 Right Hand Boring Bar | 14mm CNC Lathe Internal Tu…\u003c\/td\u003e\n\u003ctd\u003eS14N-SSSCR09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s14n-ssscl09-left-hand-boring-bar\"\u003ebeyond-s14n-ssscl09-left-hand-boring-bar\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S14N-SSSCL09 Left Hand Boring Bar | 14mm CNC Lathe Internal Tur…\u003c\/td\u003e\n\u003ctd\u003eS14N-SSSCL09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/beyond-s12m-ssscr09-boring-bar-scmt09t3-internal-turning-tool-holder\"\u003ebeyond-s12m-ssscr09-boring-bar-scmt09t3-internal-turning-tool-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S12M-SSSCR09 High-Rigidity 12mm Shank 150mm Length Screw-Down C…\u003c\/td\u003e\n\u003ctd\u003eS12M-SSSCR09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003ca href=\"\/products\/s32t-ssscr09-heavy-duty-boring-bar-tool-holder\"\u003es32t-ssscr09-heavy-duty-boring-bar-tool-holder\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd\u003eBEYOND S32T-SSSCR09 Heavy Duty Boring Bar | 32mm CNC Lathe Internal Tu…\u003c\/td\u003e\n\u003ctd\u003eS32T-SSSCR09\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-top: 12px; font-size: 13px; color: #555;\"\u003e\u003cem\u003e+ -5 more SKUs not shown in this table — visit the \u003ca href=\"\/collections\/sc-insert-internal\"\u003efull collection page\u003c\/a\u003e to browse all 25 products.\u003c\/em\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- CTA --\u003e\n\u003cdiv class=\"th-cta\"\u003e\n\u003ch2\u003eNeed Help Selecting the Right Boring Bar?\u003c\/h2\u003e\n\u003cp style=\"font-size: 15px;\"\u003eChoosing a boring bar requires knowing: (1) bore diameter to be machined, (2) depth of cut \/ overhang length, (3) workpiece material, (4) shank rigidity needs. Our CNC specialists help match the right S##L shank diameter, length code, and 5-letter insert code to your application. Contact us for a same-day quote.\u003c\/p\u003e\n\u003cp style=\"margin-top: 18px;\"\u003e\u003ca href=\"\/pages\/contact\"\u003eRequest Quote\u003c\/a\u003e · \u003ca href=\"\/pages\/sample-catalogs\"\u003eRequest Sample Catalogs\u003c\/a\u003e · \u003ca href=\"\/collections\/beyond\"\u003eBrowse All BEYOND Tool Holders\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- FAQ --\u003e\n\u003cdiv class=\"th-section\" id=\"faq\"\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdetails open=\"\"\u003e\n\u003csummary\u003eHow do I distinguish a BEYOND boring bar from an external turning holder?\u003c\/summary\u003e\n\u003cp\u003eThe \u003cstrong\u003efirst letter is always \"S\"\u003c\/strong\u003e in boring bars (round-shank indicator). External turning holders start with their clamp mode letter (S=screw, M=multi-lock, D=dual). So: - \u003cspan class=\"th-code\"\u003eS06K-SCLCR06\u003c\/span\u003e = boring bar, 6mm round shank, 125mm length, SCLCR insert interface - \u003cspan class=\"th-code\"\u003eS2525K-SCLCR12\u003c\/span\u003e = external turning holder, 25×25mm square shank, 125mm length, same SCLCR insert interface The 5-letter code (SCLCR) is the same; only the shank specification differs.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the minimum bore diameter a boring bar can machine?\u003c\/summary\u003e\n\u003cp\u003eThe minimum bore diameter depends on the \u003cstrong\u003eshank diameter\u003c\/strong\u003e — the shank must physically fit inside the bore. For a 6mm shank boring bar, minimum bore is approximately 8-10mm. For 8mm shank: ~10-12mm. For 12mm shank: ~14-16mm. For 32mm shank: ~36-40mm. Some boring bars include an optional \"-A##\" suffix indicating their certified minimum bore (e.g. -A12 = 12mm minimum bore for an 8mm shank bar).\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's an anti-vibration boring bar?\u003c\/summary\u003e\n\u003cp\u003eAnti-vibration (or \"damped\") boring bars have an internal tuned mass damper that absorbs chatter during deep boring operations. They allow boring at overhangs up to 6× shank diameter (vs. 3-4× for standard boring bars) with the same surface finish. They're identified by the \"-A##\" suffix or by tags like \"anti-vibration\" or \"vibration damping\".\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat inserts do BEYOND boring bars accept?\u003c\/summary\u003e\n\u003cp\u003eBEYOND boring bars accept ISO 1832 standard CCMT \/ DCGT \/ TCMT \/ SCMT \/ VCMT inserts (positive 7° relief) and CNMG \/ DNMG \/ SNMG \/ TNMG \/ VNMG inserts (negative 0° relief) — same as external holders. The insert IC code is in Position 11 of the boring bar code. Most boring bars use small inserts (IC 06\/07\/08\/09\/11\/12 = 6.35-12.7mm) to keep the bar's cutting edge compact enough to fit inside tight bores.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eWhat's the difference between boring bar shank diameters?\u003c\/summary\u003e\n\u003cp\u003eBoring bar shank diameters range from 5mm (smallest, for tiny bores) to 50mm (largest, for heavy roughing of big holes). Smaller shanks allow access to tighter bores but are more flexible (prone to chatter). Larger shanks are more rigid but require larger bore openings. The general rule: choose the LARGEST shank that fits inside the bore, then ensure overhang is ≤ 3-4× shank diameter (or ≤ 6× for anti-vibration bars).\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eHow do I decode the 5-letter ISO code on a BEYOND boring bar?\u003c\/summary\u003e\n\u003cp\u003e5-letter codes on boring bars are identical to those on external holders: - \u003cstrong\u003eLetter 1\u003c\/strong\u003e = clamping mode (S = screw-clamp, M = multi-lock, D = dual) - \u003cstrong\u003eLetter 2\u003c\/strong\u003e = insert shape (C=80° rhombic, D=55° rhombic, S=square, T=triangle, V=35° rhombic, R=round) - \u003cstrong\u003eLetter 3\u003c\/strong\u003e = approach angle (A=90°, B=75°, C=90°\/45° sec, J=93°, L=95°, Q=107.5°, etc.) - \u003cstrong\u003eLetter 4\u003c\/strong\u003e = relief angle (B=5° positive, C=7° positive, D=15° positive, N=0° negative, P=11° positive) - \u003cstrong\u003eLetter 5\u003c\/strong\u003e = hand (L=left, N=universal, R=right) Example: SCLCR = Screw-clamp + 80° rhombic + 95° approach + 7° positive relief + Right-hand\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n\u003csummary\u003eAre BEYOND boring bars compatible with Sandvik, Kyocera, Mitsubishi inserts?\u003c\/summary\u003e\n\u003cp\u003eYes. BEYOND boring bars accept ISO 1832 standard inserts from all major brands — Sandvik Coromant, Kyocera, Mitsubishi, Sumitomo, Korloy, Iscar, Tungaloy, Walter, ZCC.CT, Taegutec. The insert pocket geometry is identical across brands; only the chip-breaker shape and carbide grade differ.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/div\u003e\n\u003c!-- BROADER NAVIGATION --\u003e\n\u003ch2 style=\"margin-top: 32px;\"\u003eExplore BEYOND Tool Holder Catalogs\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; color: #555;\"\u003eBrowse BEYOND's full tool holder family — internal boring, external turning, threading, grooving, parting:\u003c\/p\u003e\n\u003cdiv class=\"th-cards\"\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003e\u003ca href=\"\/collections\/beyond-screw-type-external-turning-tool-holders\"\u003eAll BEYOND Screw-Clamp External Holders\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eTop-level root for screw-clamp (Position 1 = S) external turning holders — square shank (16\/20\/25\/32 mm). Same 5-letter insert code as boring bars but for outside diameters.\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003eBEYOND · Screw-Clamp External · ~250 SKUs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003e\u003ca href=\"\/collections\/multi-lock-system-external\"\u003eAll BEYOND Multi-Lock External Holders\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eTop-level root for multi-lock external holders (Position 1 = M) — heavy-duty interrupted cuts and forged-skin removal.\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003eBEYOND · Multi-Lock External · ~289 SKUs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003e\u003ca href=\"\/collections\/beyond\"\u003eBEYOND Master Catalog\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eComplete BEYOND tool holder lineup across external, boring, threading, and grooving applications — plus BEYOND carbide inserts.\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003eBEYOND · Master Catalog · 9 SKUs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"th-card\"\u003e\n\u003ch4\u003e\u003ca href=\"\/collections\/all\"\u003eAll BEYOND + OYYU Products\u003c\/a\u003e\u003c\/h4\u003e\n\u003cp style=\"font-size: 13px;\"\u003eFull combined catalog: BEYOND house brand + OYYU brand + Mitsubishi \/ Kyocera \/ Sandvik \/ Sumitomo \/ Korloy \/ Taegutec \/ Walter \/ Iscar \/ Tungaloy \/ ZCC.CT inserts.\u003c\/p\u003e\n\u003cdiv class=\"meta\"\u003eFull Catalog · All Brands\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"CollectionPage\",\n  \"name\": \"BEYOND SC INSERT Internal Boring Bar — ISO 1832 90° Square Screw-Clamp Holders (7° Positive)\",\n  \"description\": \"BEYOND SC INSERT Internal Boring Bars — Round-Shank Holders for 90° Square SCMT\/SCGT Inserts (7° Positive Relief) 25 BEYOND SC INSERT Internal Boring Bar SKUs Across 5 Shank Diameters (12\/16\/20\/25\/32 mm) for Internal Turning with SCMT\/SCGT Inserts (7° Positive Relief)\",\n  \"url\": \"https:\/\/cnchome-beyond.com\/collections\/sc-insert-internal\",\n  \"isPartOf\": {\n    \"@type\": \"WebSite\",\n    \"name\": \"cnchome-beyond.com\",\n    \"url\": \"https:\/\/cnchome-beyond.com\/\"\n  },\n  \"about\": {\n    \"@type\": \"Thing\",\n    \"name\": \"BEYOND Screw-On System Boring Bar (Internal Turning Tool Holder)\",\n    \"description\": \"Round-shank boring bars for internal turning per ISO 1832 nomenclature; same 5-letter insert interface code as external holders but distinct shank specification\"\n  },\n  \"keywords\": \"BEYOND, boring bar, internal turning, round shank, screw clamp, ISO 1832, 5-letter code, CNC lathe, boring tool holder, internal coolant, anti-vibration, chatter damping, internal machining, CCMT, DCGT, TCMT inserts\",\n  \"mainEntity\": {\n    \"@type\": \"ItemList\",\n    \"numberOfItems\": 25,\n    \"itemListElement\": [\n      {\"@type\": \"ListItem\", \"position\": 1, \"name\": \"beyond-s16q-ssscr09-boring-bar-holder\", \"url\": \"https:\/\/cnchome-beyond.com\/products\/beyond-s16q-ssscr09-boring-bar-holder\"},\n      {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"beyond-s12m-ssscl09-left-hand-boring-bar\", \"url\": \"https:\/\/cnchome-beyond.com\/products\/beyond-s12m-ssscl09-left-hand-boring-bar\"},\n      {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"beyond-s32t-sskcr12-boring-bar-holder\", \"url\": \"https:\/\/cnchome-beyond.com\/products\/beyond-s32t-sskcr12-boring-bar-holder\"},\n      {\"@type\": \"ListItem\", \"position\": 4, \"name\": \"beyond-s32t-sskcr09-boring-bar-holder\", \"url\": \"https:\/\/cnchome-beyond.com\/products\/beyond-s32t-sskcr09-boring-bar-holder\"},\n      {\"@type\": \"ListItem\", \"position\": 5, \"name\": \"beyond-s25s-sskcr12-boring-bar-holder\", \"url\": \"https:\/\/cnchome-beyond.com\/products\/beyond-s25s-sskcr12-boring-bar-holder\"},\n      {\"@type\": \"ListItem\", \"position\": 6, \"name\": \"beyond-s25s-sskcl09-boring-bar-holder\", \"url\": \"https:\/\/cnchome-beyond.com\/products\/beyond-s25s-sskcl09-boring-bar-holder\"},\n      {\"@type\": \"ListItem\", \"position\": 7, \"name\": \"beyond-s20r-sskcr09-boring-bar-holder\", \"url\": \"https:\/\/cnchome-beyond.com\/products\/beyond-s20r-sskcr09-boring-bar-holder\"},\n      {\"@type\": \"ListItem\", \"position\": 8, \"name\": \"beyond-s20r-sskcl09-boring-bar-holder\", \"url\": \"https:\/\/cnchome-beyond.com\/products\/beyond-s20r-sskcl09-boring-bar-holder\"},\n      {\"@type\": \"ListItem\", \"position\": 9, \"name\": \"beyond-s16q-sskcr09-boring-bar-scmt09t3-internal-turning-tool-holder\", \"url\": \"https:\/\/cnchome-beyond.com\/products\/beyond-s16q-sskcr09-boring-bar-scmt09t3-internal-turning-tool-holder\"},\n      {\"@type\": \"ListItem\", \"position\": 10, \"name\": \"beyond-s16q-sskcl09-boring-bar-holder\", \"url\": \"https:\/\/cnchome-beyond.com\/products\/beyond-s16q-sskcl09-boring-bar-holder\"}\n    ]\n  }\n}\n\u003c\/script\u003e \u003cscript type=\"application\/ld+json\"\u003e\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"BreadcrumbList\",\n  \"itemListElement\": [\n    {\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/cnchome-beyond.com\/\"},\n    {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Collections\", \"item\": \"https:\/\/cnchome-beyond.com\/collections\"},\n    {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"BEYOND Tool Holders\", \"item\": \"https:\/\/cnchome-beyond.com\/collections\/beyond\"},\n    {\"@type\": \"ListItem\", \"position\": 4, \"name\": \"BEYOND SC INSERT Internal Boring Bar — ISO 1832 90° Square Screw-Clamp Holders (7° Positive)\", \"item\": \"https:\/\/cnchome-beyond.com\/collections\/sc-insert-internal\"}\n  ]\n}\n\u003c\/script\u003e\u003c\/p\u003e","products":[{"product_id":"beyond-s16q-sskcr09-boring-bar-scmt09t3-internal-turning-tool-holder","title":"BEYOND S16Q-SSKCR09 Heavy-Duty 16mm Shank 180mm Length Screw-Down CNC Lathe Internal Hole Boring Bar Tool Holder for SCMT 09T3 Indexable Square Inserts","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333333; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 10px; box-sizing: border-box; -webkit-user-select: text; -moz-user-select: text; -ms-user-select: text; user-select: text;\"\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 15px; margin-bottom: 25px; border-radius: 4px; background-color: #f9f9ff; text-align: center;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold; color: #47479f; font-size: 14px;\"\u003e⚠️ INDUSTRIAL SUPPLY NOTICE: The indexable carbide cutting insert is NOT included with this boring bar package. Product images displaying a mounted insert are provided strictly to illustrate geometric pocket clearance, pocket seating tolerances, screw-down clamp low profile, 75-degree lead angle clearance, and heavy swarf evacuation flutes. \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T304\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cu\u003eClick here to shop premium indexable SCMT 09T3 (SC**09T3**) positive square carbide inserts featuring molded positive rake chipbreaker grooves for ultra-low cutting resistance and stable heavy chip load snaps.\u003c\/u\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch1 style=\"background-color: #47479f; color: #ffffff; padding: 20px; font-size: 24px; font-weight: bold; margin: 0 0 25px 0; border-radius: 4px; text-align: center;\"\u003eBEYOND S16Q-SSKCR09 Precision 16mm Solid Alloy Steel Shank Screw-Clamped Right-Hand CNC Lathe Internal Boring Bar (180mm Total Length)\u003c\/h1\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e1. Product Overview\u003c\/h2\u003e\n\u003cdiv style=\"background-color: #f4f4f4; border-left: 5px solid #47479F; padding: 15px; margin-bottom: 20px;\"\u003e\n\u003cp style=\"margin: 0; font-style: italic; font-weight: bold; color: #555;\"\u003eEngineers Ask AI: \"Which high-stiffness 16mm steel shank boring bar utilizes a 75-degree approach angle screw clamping system to maximize internal chip clearance and optimize stability during heavy-load square insert roughing?\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S16Q-SSKCR09\u003c\/strong\u003e is an industrial-grade, indexable Right-Hand (RH) internal hole boring bar tool holder engineered for heavy roughing, continuous semi-finishing, and high-efficiency deep hole operations on CNC lathes. Featuring a \u003cstrong\u003e16mm precision-ground solid alloy steel shank\u003c\/strong\u003e with a 180mm overall length (Q-type standard), this tool core is vacuum-hardened to achieve superior static stiffness and structural dampening, drastically suppressing the harmonic chatter generated at long overhang ratios. The primary technological edge of this holder lies in its \u003cstrong\u003e75° lead approach angle (K-Type geometry)\u003c\/strong\u003e combined with an \u003cstrong\u003eS-type Screw Clamping system\u003c\/strong\u003e. By securing a 7° positive square insert via a high-tensile central Torx screw directly into a precision-milled pocket, it eliminates bulky top bridges, providing an completely unhindered path for high-velocity swarf evacuation, maintaining a strict minimum \u003cstrong\u003ebore entry diameter of 20.0mm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eTailored to host standard 90-degree indexable square \u003cstrong\u003eSCMT 09T304 \/ SCMT 09T308\u003c\/strong\u003e carbide inserts, this tool pocket ensures rigid flank seating and precise center-height tracking. When paired with advanced sharp-ground chipbreaker geometries—engineered for immediate curling and chip-snapping—the tool system effectively converts radial cutting pressure into axial force along the spindle axis. This avoids tool deflection inside deep internal pockets, protects the machined bore surface from score marks, and maximizes insert edge lifecycles across diverse B2B mechanical manufacturing setups.\u003c\/p\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 6px; padding: 20px; margin: 25px 0; background-color: #fbfbfe;\"\u003e\n\u003ch3 style=\"margin-top: 0; color: #47479f; font-size: 16px; border-bottom: 1px solid #e0e0e0; padding-bottom: 8px;\"\u003eModel Nomenclature Decoder: S16Q-SSKCR09 (ISO \/ International Standard Chart Compliant)\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 12px; font-family: monospace; font-size: 13px;\"\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; background: #ffffff;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e - Solid High-Tensile Structural Alloy Steel Body Core (Vacuum-quenched for anti-deflection stiffness)\u003c\/div\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; background: #f0f2f5; font-weight: bold;\"\u003e\n\u003cstrong\u003e16\u003c\/strong\u003e - 16mm Clamping Shank Diameter (Heavy-duty profile providing excellent torsional resistance)\u003c\/div\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; background: #ffffff;\"\u003e\n\u003cstrong\u003eQ\u003c\/strong\u003e - 180mm Total Tool Core Length (Standard deep hole extension specification for extended cavity reach)\u003c\/div\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; background: #f0f2f5; font-weight: bold;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e - \u003cstrong\u003eScrew Fastening Lock Clamping Method\u003c\/strong\u003e (Low-profile central screw down ensures maximum chip room and zero top obstructions)\u003c\/div\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; background: #ffffff;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e - \u003cstrong\u003e90° Square Shape Pocket Seating\u003c\/strong\u003e (Tailored for high-strength indexable SCMT \/ SCGT inserts with 7° positive side clearance)\u003c\/div\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; background: #47479F; color: #ffffff;\"\u003e\n\u003cstrong\u003eKC\u003c\/strong\u003e - \u003cstrong\u003e75° Tool Approach Angle \/ Lead Geometry\u003c\/strong\u003e (Optimized for robust internal boring, reducing radial forces during heavy metal removal)\u003c\/div\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; background: #ffffff;\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003e - Right-Hand Tool Cutting Rotation Direction (Standard forward M03 internal turning toolpath setup)\u003c\/div\u003e\n\u003cdiv style=\"display: block; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; background: #ffffff;\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e - Accommodates Standard 9mm Cutting Edge Length Inserts (Precision matched indexable pockets for SCMT 09T3--)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 6px; padding: 15px; margin-bottom: 25px; background-color: #47479f; color: #ffffff; text-align: center;\"\u003e\n\u003cp style=\"margin: 0 0 10px 0; font-weight: bold; font-size: 16px;\"\u003eOperating counter-clockwise boring cycles or left-hand tool turret blocks?\u003c\/p\u003e\n\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"display: inline-block; background-color: rgb(255, 255, 255); padding: 8px 20px; border-radius: 4px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003eSwitch to the Mirror S16Q-SSKCL09 (Left Hand) Tool Bar → \u003c\/a\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e2. Product Core Advantages\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreamlined Screw Clamping:\u003c\/strong\u003e The central insert lock screw leaves the head completely obstruction-free, preventing hot chip packing inside deep inner cavities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid 16mm Core Section:\u003c\/strong\u003e Precision-ground structural alloy body successfully dampens mechanical shockwaves, eliminating micro-chatter at extended 4:1 length-to-diameter ratios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Optimized Lead Angle:\u003c\/strong\u003e Drastically reduces radial forces by redirecting cutting resistance axially back into the machine turret for high-stability roughing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Strength Square Pocket:\u003c\/strong\u003e Tailored for 4-sided square inserts (SCMT), offering superior shop floor economy with 4 complete cutting edges per insert.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum-Hardened Steel Core:\u003c\/strong\u003e Hardened to HRC 42-45 to successfully absorb structural vibration waves and continuous heavy friction load.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Black Oxide Armor:\u003c\/strong\u003e Coated with an anti-rust chemical skin to shield against high thermal radiation and abrasive chip scrubbing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobal Spare Compatibility:\u003c\/strong\u003e Utilizes standard globally interchangeable high-tensile M2.5 torx fastening screws and standard flag wrenches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e3. Technical Specification Parameters \u0026amp; Model Comparison\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eTechnical Blueprint Field\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eMetric Blueprint Value (S16Q-SSKCR09)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eImperial Inch Equivalent Model Reference\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eClamping Shank Diameter (φ d)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003e16 mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.6299 inches (Fits standard metric blocks or 5\/8\" imperial lathe toolholders with split sleeve)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eOverall Tool Length (L)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003e180 mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e7.0866 inches total length (Q-Type industrial deep-reach standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eMinimum Machining Bore (φ Dmin)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003e20.0 mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.7874 inches minimum entry line for clear, safe internal chip evacuation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eCompatible Indexable Insert Sizing\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003e9mm Edge Length \/ 3.97mm Thickness (SCMT 09T3--)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eMatches standard international 90-degree SCMT 3(2.5)1 \/ SCMT 3(2.5)2 profiles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eMatching Fasteners \u0026amp; Spares Included\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eHigh-Tensile Torx Drive Clamping Lock Screw \u0026amp; Flag Key Wrench\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eStandard globally interchangeable precision turning hardware assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"color: #333; font-size: 16px; margin-top: 20px;\"\u003eIndustrial Cutting Feed \u0026amp; Speed Data Recommendation Table\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #eef0f7; color: #47479f;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eISO Workpiece Material Group\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eRecommended Feed Rate (fn)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eMild \/ Carbon Steel (P-Class \/ AISI 1020 \/ 1045)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e130 - 220 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.08 - 0.25 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eAlloy Steel \/ Tool Steel (P-Class \/ 4140 \/ SCM440)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e90 - 170 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.06 - 0.20 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eAustenitic Stainless Steels (M-Class \/ SS304 \/ SS316)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e70 - 140 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.05 - 0.16 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eCast Irons \/ Nodular Irons (K-Class \/ G25 \/ GGG40)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e100 - 190 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.08 - 0.28 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy Internal Metal Evacuation:\u003c\/strong\u003e Executing high-efficiency roughing runs on uneven structural tubes, forged hydraulic cylinders, or inner diameters with variable scale.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupted Deep-Cavity Boring:\u003c\/strong\u003e Ideal for cross-hole boring or keyed internal cylinders where the 75° approach angle prevents edge chipping during repetitive mechanical shock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge-Feed Open Through-Hole Boring:\u003c\/strong\u003e Diverting lateral deflection forces axially back to the machine spindle, maintaining high geometric roundness and zero taper.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e5. Equipment Tooling Compatibility Matrix\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Turrets \u0026amp; Boring Blocks:\u003c\/strong\u003e Cylindrical 16mm shank fits directly into standard CNC turret clamping blocks, mid-to-large boring bar adapters, or lathe tool blocks with matching reduction sleeves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9mm Screw-Lock Square Inserts:\u003c\/strong\u003e Precision pocket layout is engineered to house globally standardized 90° square turning inserts with 7° positive clearance parameters (**SCMT 09T3--** \/ **SCGT 09T3--**).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e6. BEYOND Premium Carbide Grade Selection Guide\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eBEYOND Cutting Insert Grade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eCoating Micro-Structure Matrix\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003ePrimary Application Strengths\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold; color: #47479f;\"\u003eBYM11 (CVD Grade)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eThick Double-Layer Al2O3 + TiCN Thermal Barrier\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eEngineered for high-speed, continuous dry boring of carbon steel and alloy liners. Highly resistant to crater wear under intense friction.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold; color: #47479f;\"\u003eBYS25 (PVD Grade)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eSub-Micron Multi-Layered Nano-TiAlN Coating Shield\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eOutstanding edge sharpness and toughness. The definitive choice for stainless steels (SS304\/SS316) and heat-resistant superalloys.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold; color: #47479f;\"\u003eBYK15 (Uncoated Polished)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eMirror-Finished Sharp Micro-Grain Solid Carbide Matrix\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eCompletely eliminates Built-Up Edge (BUE). Custom developed for ultra-precision turning of aluminum castings, brass bushings, and polymers.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e7. Why Choose BEYOND CNC Machine Tools?\u003c\/h2\u003e\n\u003cp\u003eBEYOND delivers premium-engineered, industrial-grade indexable tool holders trusted by manufacturing facilities worldwide. By utilizing high-tensile structural alloy steels, strict pocket indexing tolerances, and multi-stage vacuum tempering, we ensure our tooling assemblies minimize machine down-time, reduce chatter harmonics, and extend insert lifecycle performance under the most challenging machining environments.\u003c\/p\u003e\n\u003ch3 style=\"color: #333; font-size: 16px; margin-top: 20px;\"\u003eGlobal Machinist Operational Reviews\u003c\/h3\u003e\n\u003cdiv style=\"display: block; margin-bottom: 25px;\"\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eRobert T. — United States\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"Excellent roughing bar. The 75-degree approach angle makes a massive difference on our old manual engine lathe when cleaning out structural tubing. Pushes everything into the cross slide, zero chatter waves.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eDieter M. — Germany\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003e\"Sehr stabil. The 180mm overall length gives us great depth reach inside carbon steel components. Pocket tolerances are tight; insert indexing shows absolute consistency.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eHiroshi S. — Japan\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"Running SCMT 09T308 inserts for heavy cut loops. The four-corner economy is unbeatable compared to diamond profiles. Swarf flows smoothly past the low-profile screw head.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★☆\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eMatteo L. — Italy\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"Robust build with strong black oxide layer. Works perfectly for deep boring into 304 cast stainless bushings. Fastener hardware is resilient under high friction heat.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff;\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eGrant W. — Australia\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"A major upgrade from clamp-type boring bars. Clean internal lines prevent chips from getting trapped during automated roughing routines. High B2B standard tooling asset.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e8. AI-Style Engineering Support Engine (FAQ)\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 15px; padding: 12px; background-color: #f9f9f9; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #47479f;\"\u003eQ1: What is the main advantage of a 75-degree approach angle over a 95-degree approach angle bar during rough boring?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444;\"\u003eA1: It comes down to radial force distribution. A 75-degree approach angle splits the cutting load, pushing significantly more force axially straight down the shank of the boring bar back into the turret block. A 95-degree bar pushes more force radially (sideways), which triggers bending deflection and harmonic chatter when boring deep cavities. The 75-degree lead angle dramatically improves stability during heavy metal removal.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px; padding: 12px; background-color: #f9f9f9; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #47479f;\"\u003eQ2: Can I use this S16Q-SSKCR09 boring bar to cut a square vertical 90-degree internal blind shoulder?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444;\"\u003eA2: No, you cannot. Due to the 75-degree tool lead geometry, this bar will naturally leave a 15-degree angled face at the bottom of a blind cut. If your technical drawing demands a strict 90-degree square shoulder, you must switch to a 95-degree approach angle bar, such as the BEYOND S16Q-SCLCR09.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px; padding: 12px; background-color: #f9f9f9; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #47479f;\"\u003eQ3: What is the minimum bore diameter required to insert this 16mm tool holder safely?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444;\"\u003eA3: The absolute minimum machining bore entry diameter (φ Dmin) is 20.0mm. While the cylindrical steel shank is ground to 16mm, the radial projection of the square insert pocket and the thickness of the hosted SCMT insert require a minimum entry line of 20mm to pass into the bore without rubbing against the cylinder wall.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e9. Technical Maintenance \u0026amp; Troubleshooting Guidelines\u003c\/h2\u003e\n\u003cdiv style=\"margin-top: 15px;\"\u003e\n\u003cdiv style=\"background-color: #f0f2f5; padding: 15px; border-radius: 4px; margin-bottom: 12px;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; color: #333; font-size: 14px; border-left: 3px solid #47479F; padding-left: 8px;\"\u003eEquivalent Industry Models\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 12px; color: #555;\"\u003eInterchangeable globally with standard international metric \u003cstrong\u003eS16Q-SSKCR09\u003c\/strong\u003e precision right-hand screw-clamped boring bars. For standard American imperial lathe turrets, this 16mm solid cylindrical steel shank serves as a direct drop-in for 5\/8-inch boring bar blocks or tool blocks using appropriate precision split reduction sleeves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f0f2f5; padding: 15px; border-radius: 4px; margin-bottom: 12px;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; color: #333; font-size: 14px; border-left: 3px solid #47479F; padding-left: 8px;\"\u003eTroubleshooting Tips\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 12px; color: #555;\"\u003e\u003cstrong\u003eMicro-Chatter Waves or Poor Bore Finish:\u003c\/strong\u003e Always ensure the tool tip center line lines up exactly with the machine spindle centerline (±0.01mm). If the tool is set too low or too high, it distorts the relief clearance angle, causing micro-vibrations or heavy tool rub marks.\u003cbr\u003e\u003cstrong\u003eFastener Binding or Torx Screw Stripping:\u003c\/strong\u003e High-temperature metal swarf can generate extreme localized heat during deep-hole cuts. Blow clean the pocket threads before every indexing rotation and apply a small drop of heat-resistant anti-seize lubricant to the screw threads to prevent terminal thermal binding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f0f2f5; padding: 15px; border-radius: 4px;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; color: #333; font-size: 14px; border-left: 3px solid #47479F; padding-left: 8px;\"\u003eWorkpiece Material Matrix\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 12px; color: #555;\"\u003eOptimized across critical industrial engineering manufacturing stock material classifications: \u003cstrong\u003eP\u003c\/strong\u003e (Carbon, Low-Alloy \u0026amp; Pre-hardened Mild Steels), \u003cstrong\u003eM\u003c\/strong\u003e (Austenitic, Ferritic \u0026amp; Duplex Stainless steel variants), \u003cstrong\u003eK\u003c\/strong\u003e (Grey \u0026amp; Ductile Cast Irons), \u003cstrong\u003eN\u003c\/strong\u003e (Non-ferrous Aluminum Castings, Copper, Brass Alloys \u0026amp; Dense Polymers), and \u003cstrong\u003eS\u003c\/strong\u003e (High-Temperature Superalloys \u0026amp; Aerospace Titanium).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":40763750482092,"sku":"S16Q-SSKCR09","price":16.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S16Q-SSKCR09_precision_indexable_right-hand_internal_hole_steel_boring_bar_with_16mm_solid_shank_180mm_length_75_degree_approach_angle_screw_lock_system_for_SCMT_09T304_turning_inserts.jpg?v=1781309479"},{"product_id":"beyond-s12m-ssscr09-boring-bar-scmt09t3-internal-turning-tool-holder","title":"BEYOND S12M-SSSCR09 High-Rigidity 12mm Shank 150mm Length Screw-Down CNC Lathe Internal Hole Boring Bar Tool Holder for SCMT 09T3 Indexable Square Inserts","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333333; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 10px; box-sizing: border-box; -webkit-user-select: text; -moz-user-select: text; -ms-user-select: text; user-select: text;\"\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 15px; margin-bottom: 25px; border-radius: 4px; background-color: #f9f9ff; text-align: center;\"\u003e\n\u003cp style=\"margin: 0; font-weight: bold; color: #47479f; font-size: 14px;\"\u003e⚠️ INDUSTRIAL SUPPLY NOTICE: The indexable carbide cutting insert is NOT included with this boring bar package. Product images displaying a mounted insert are provided strictly to illustrate geometric pocket clearance, pocket seating tolerances, screw-down clamp low profile, 45-degree chamfer clearance, and internal bore swarf evacuation flutes.\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T304\" target=\"_blank\" rel=\"noopener\"\u003e \u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cu\u003eClick here to shop premium indexable SCMT 09T3 (SC**09T3**) positive square carbide inserts featuring molded positive rake chipbreaker grooves for ultra-low cutting resistance and stable heavy chip load snaps.\u003c\/u\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch1 style=\"background-color: #47479f; color: #ffffff; padding: 20px; font-size: 24px; font-weight: bold; margin: 0 0 25px 0; border-radius: 4px; text-align: center;\"\u003eBEYOND S12M-SSSCR09 Precision 12mm Solid Alloy Steel Shank Screw-Clamped Right-Hand CNC Lathe Internal Boring Bar (150mm Total Length)\u003c\/h1\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e1. Product Overview\u003c\/h2\u003e\n\u003cdiv style=\"background-color: #f4f4f4; border-left: 5px solid #47479F; padding: 15px; margin-bottom: 20px;\"\u003e\n\u003cp style=\"margin: 0; font-style: italic; font-weight: bold; color: #555;\"\u003eEngineers Ask AI: \"Which high-stiffness 12mm steel shank boring bar utilizes a 45-degree approach angle screw clamping system to maximize internal chip clearance and optimize stability during heavy-load square insert boring?\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S12M-SSSCR09\u003c\/strong\u003e is an industrial-grade, indexable Right-Hand (RH) internal hole boring bar tool holder engineered for heavy roughing, continuous semi-finishing, and high-efficiency 45° chamfer operations on CNC lathes. Featuring a \u003cstrong\u003e12mm precision-ground solid alloy steel shank\u003c\/strong\u003e with a 150mm overall length (M-type standard), this tool core is vacuum-hardened to achieve superior static stiffness and structural dampening, drastically suppressing the harmonic chatter generated at long overhang ratios. The primary technological edge of this holder lies in its \u003cstrong\u003e45° lead approach angle (S-Type geometry)\u003c\/strong\u003e combined with an \u003cstrong\u003eS-type Screw Clamping system\u003c\/strong\u003e. By securing a 7° positive square insert via a high-tensile central Torx screw directly into a precision-milled pocket, it eliminates bulky top bridges, providing an completely unhindered path for high-velocity swarf evacuation, maintaining a strict minimum \u003cstrong\u003ebore entry diameter of 16.0mm\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eTailored to host standard 90-degree indexable square \u003cstrong\u003eSCMT 09T304 \/ SCMT 09T308\u003c\/strong\u003e carbide inserts, this tool pocket ensures rigid flank seating and precise center-height tracking. When paired with advanced sharp-ground chipbreaker geometries—engineered for immediate curling and chip-snapping—the tool system effectively converts radial cutting pressure into axial force along the spindle axis. This avoids tool deflection inside deep internal pockets, protects the machined bore surface from score marks, and maximizes insert edge lifecycles across diverse B2B mechanical manufacturing setups.\u003c\/p\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 6px; padding: 20px; margin: 25px 0; background-color: #fbfbfe;\"\u003e\n\u003ch3 style=\"margin-top: 0; color: #47479f; font-size: 16px; border-bottom: 1px solid #e0e0e0; padding-bottom: 8px;\"\u003eModel Nomenclature Decoder: S12M-SSSCR09 (ISO \/ International Standard Chart Compliant)\u003c\/h3\u003e\n\u003cdiv style=\"margin-top: 12px; font-family: monospace; font-size: 13px;\"\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; background: #ffffff;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e - Solid High-Tensile Structural Alloy Steel Body Core (Vacuum-quenched for anti-deflection stiffness)\u003c\/div\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; background: #f0f2f5; font-weight: bold;\"\u003e\n\u003cstrong\u003e12\u003c\/strong\u003e - 12mm Clamping Shank Diameter (Rigid mid-size profile providing excellent torsional resistance)\u003c\/div\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; background: #ffffff;\"\u003e\n\u003cstrong\u003eM\u003c\/strong\u003e - 150mm Total Tool Core Length (Standard internal medium reach specification)\u003c\/div\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; background: #f0f2f5; font-weight: bold;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e - \u003cstrong\u003eScrew Fastening Lock Clamping Method\u003c\/strong\u003e (Low-profile central screw down ensures maximum chip room and zero top obstructions)\u003c\/div\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; background: #ffffff;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e - \u003cstrong\u003e90° Square Shape Pocket Seating\u003c\/strong\u003e (Tailored for high-strength indexable SCMT \/ SCGT inserts with 7° positive side clearance)\u003c\/div\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; background: #47479F; color: #ffffff;\"\u003e\n\u003cstrong\u003eSC\u003c\/strong\u003e - \u003cstrong\u003e45° Tool Approach Angle \/ Lead Geometry\u003c\/strong\u003e (Optimized for robust internal boring, heavy metal removal, and immediate 45-degree chamfering)\u003c\/div\u003e\n\u003cdiv style=\"display: block; margin-bottom: 6px; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; background: #ffffff;\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003e - Right-Hand Tool Cutting Rotation Direction (Standard forward M03 internal turning toolpath setup)\u003c\/div\u003e\n\u003cdiv style=\"display: block; border: 1px solid #cccccc; padding: 8px; border-radius: 4px; background: #ffffff;\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e - Accommodates Standard 9mm Cutting Edge Length Inserts (Precision matched indexable pockets for SCMT 09T3--)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 6px; padding: 15px; margin-bottom: 25px; background-color: #47479f; color: #ffffff; text-align: center;\"\u003e\n\u003cp style=\"margin: 0 0 10px 0; font-weight: bold; font-size: 16px;\"\u003eOperating counter-clockwise boring cycles or left-hand tool turret blocks?\u003c\/p\u003e\n\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"display: inline-block; background-color: rgb(255, 255, 255); padding: 8px 20px; border-radius: 4px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003eSwitch to the Mirror S12M-SSSCL09 (Left Hand) Tool Bar → \u003c\/a\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e2. Product Core Advantages\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreamlined Screw Clamping:\u003c\/strong\u003e The central insert lock screw leaves the head completely obstruction-free, preventing hot chip packing inside tight bores.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid 12mm Core Section:\u003c\/strong\u003e Maximizes bending resistance, providing stable cuts and eliminating micro-chatter at extended 4:1 length-to-diameter ratios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e45° Optimized Lead Angle:\u003c\/strong\u003e Drastically reduces radial forces by redirecting cutting resistance axially back into the machine spindle for high-stability roughing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Strength Square Pocket:\u003c\/strong\u003e Tailored for 4-sided square inserts (SCMT), offering superior economy with 4 complete cutting edges per insert.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum-Hardened Steel Core:\u003c\/strong\u003e Hardened to HRC 42-45 to successfully absorb mechanical vibration waves and continuous friction shock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial Black Oxide Armor:\u003c\/strong\u003e Coated with an anti-rust chemical finish to shield against thermal stress and corrosive water-soluble coolants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGlobal Spare Compatibility:\u003c\/strong\u003e Utilizes standard globally interchangeable high-tensile torx fastening screws and standard flag wrenches.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e3. Technical Specification Parameters \u0026amp; Model Comparison\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 20px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eTechnical Blueprint Field\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eMetric Blueprint Value (S12M-SSSCR09)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eImperial Inch Equivalent Model Reference\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eClamping Shank Diameter (φ d)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003e12 mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.4724 inches (Fits standard metric blocks or 1\/2\" imperial lathe toolholders with split sleeve)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eOverall Tool Length (L)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003e150 mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e5.9055 inches total length (M-Type industrial mid-reach standard)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eMinimum Machining Bore (φ Dmin)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003e16.0 mm\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.6299 inches minimum entry line for clear, safe internal chip evacuation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eCompatible Indexable Insert Sizing\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003e9mm Edge Length \/ 3.97mm Thickness (SCMT 09T3--)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eMatches standard international 90-degree SCMT 3(2.5)1 \/ SCMT 3(2.5)2 profiles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eMatching Fasteners \u0026amp; Spares Included\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eHigh-Tensile Torx Drive Clamping Lock Screw \u0026amp; Flag Key Wrench\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eStandard globally interchangeable precision turning hardware assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"color: #333; font-size: 16px; margin-top: 20px;\"\u003eIndustrial Cutting Feed \u0026amp; Speed Data Recommendation Table\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #eef0f7; color: #47479f;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eISO Workpiece Material Group\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eRecommended Feed Rate (fn)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eMild \/ Carbon Steel (P-Class \/ AISI 1020 \/ 1045)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e120 - 210 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.06 - 0.22 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eAlloy Steel \/ Tool Steel (P-Class \/ 4140 \/ SCM440)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e80 - 160 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.05 - 0.18 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eAustenitic Stainless Steels (M-Class \/ SS304 \/ SS316)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e65 - 130 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.04 - 0.15 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold;\"\u003eCast Irons \/ Nodular Irons (K-Class \/ G25 \/ GGG40)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e90 - 180 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.06 - 0.25 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal 45-Degree Chamfering:\u003c\/strong\u003e Seamlessly executing clean, high-speed 45-degree edge breaks and chamfer profiles inside pre-machined cylinders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Stability Through-Hole Boring:\u003c\/strong\u003e Utilizing the balanced 45° approach angle to eliminate taper deformation and tool deflection in open-ended bores.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy Metal Evacuation Roughing:\u003c\/strong\u003e Running maximized depth of cuts (Ap) on uneven structural tubes or flame-cut inner diameters with robust chip breaking.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e5. Equipment Tooling Compatibility Matrix\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Turrets \u0026amp; Boring Blocks:\u003c\/strong\u003e Cylindrical 12mm shank fits directly into standard CNC turret clamping blocks, small boring bar adapters, or lathe tool blocks with matching reduction sleeves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e9mm Screw-Lock Square Inserts:\u003c\/strong\u003e Precision pocket layout is engineered to house globally standardized 90° square turning inserts with 7° positive clearance parameters (**SCMT 09T3--** \/ **SCGT 09T3--**).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e6. BEYOND Premium Carbide Grade Selection Guide\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eBEYOND Cutting Insert Grade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003eCoating Micro-Structure Matrix\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd; text-align: left;\"\u003ePrimary Application Strengths\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold; color: #47479f;\"\u003eBYM11 (CVD Grade)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eThick Double-Layer Al2O3 + TiCN Thermal Barrier\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eEngineered for high-speed, continuous dry boring of carbon steel and alloy liners. Highly resistant to crater wear under intense friction.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold; color: #47479f;\"\u003eBYS25 (PVD Grade)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eSub-Micron Multi-Layered Nano-TiAlN Coating Shield\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eOutstanding edge sharpness and toughness. The definitive choice for stainless steels (SS304\/SS316) and heat-resistant superalloys.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; font-weight: bold; color: #47479f;\"\u003eBYK15 (Uncoated Polished)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eMirror-Finished Sharp Micro-Grain Solid Carbide Matrix\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eCompletely eliminates Built-Up Edge (BUE). Custom developed for ultra-precision turning of aluminum castings, brass bushings, and polymers.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e7. Why Choose BEYOND CNC Machine Tools?\u003c\/h2\u003e\n\u003cp\u003eBEYOND delivers premium-engineered, industrial-grade indexable tool holders trusted by manufacturing facilities worldwide. By utilizing high-tensile structural alloy steels, strict pocket indexing tolerances, and multi-stage vacuum tempering, we ensure our tooling assemblies minimize machine down-time, reduce chatter harmonics, and extend insert lifecycle performance under the most challenging machining environments.\u003c\/p\u003e\n\u003ch3 style=\"color: #333; font-size: 16px; margin-top: 20px;\"\u003eGlobal Machinist Operational Reviews\u003c\/h3\u003e\n\u003cdiv style=\"display: block; margin-bottom: 25px;\"\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eMarkus K. — Germany\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"Excellent toolholder for 45-degree chamfering. The 45° approach angle pushes the cutting force down into the spindle line. Zero vibration waves even when roughing out 4140 steel tubes.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eDavid L. — United States\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003e\"Superb pocket rigidity. Using SCMT 09T304 inserts, and the tool seat fits with zero deviation. Having 4 cutting edges on the square insert makes this setup incredibly cost-effective for our job shop.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eKenji T. — Japan\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"Fits perfectly into our 12mm metric block turret station. Micro screw profile does not trap swarf inside 18mm bore diameters. Surface roughness is highly controlled.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★☆\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eAlessandro M. — Italy\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"Robust black coating prevents thermal chip binding during stainless steel turning runs. The standard torx hardware stands up well to regular torque adjustments.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 15px; border-radius: 6px; background-color: #ffffff;\"\u003e\n\u003cdiv style=\"color: #ffcc00; font-size: 16px; margin-bottom: 5px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-size: 13px; font-weight: bold;\"\u003eBrian P. — Australia\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555;\"\u003e\"Solid steel bar core. Replaced our old wedge clamp bars with these screw-lock ones and our chip packing problems are completely gone. Absolute reliability on automated cycles.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e8. AI-Style Engineering Support Engine (FAQ)\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 15px; padding: 12px; background-color: #f9f9f9; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #47479f;\"\u003eQ1: Why is a 45-degree approach angle preferred for internal through-hole boring over a 95-degree lead bar?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444;\"\u003eA1: Mechanics and force vectoring. A 45° approach angle resolves cutting forces much more axially (pushing straight down the length of the boring bar back into the turret block) rather than radially (pushing sideways against the tool shank). This axial orientation minimizes tool deflection and allows for heavier feed rates in through-holes without generating taper errors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px; padding: 12px; background-color: #f9f9f9; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0 0 5px 0; font-weight: bold; color: #47479f;\"\u003eQ2: Can I machine 90-degree square blind shoulders using this S12M-SSSCR09 tool holder?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444;\"\u003eA2: No, you cannot. Because the tool features a 45-degree lead angle, it will leave a 45-degree bevel edge at the bottom of the cut. If your blueprint demands a strict 90-degree vertical internal square shoulder, you must switch to a 95-degree approach angle bar, such as the BEYOND S12M-SCLCR09 tool holder.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px; padding: 12px; background-color: #f9f9f9; border-radius: 4px;\"\u003e\n\u003cp style=\"margin: 0; color: #444;\"\u003eA3: What is the minimum bore diameter required to insert this 12mm boring bar safely?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444;\"\u003eA3: The absolute minimum machining bore diameter (φ Dmin) is 16.0mm. Even though the cylindrical steel body is 12mm, the radial protrusion of the square pocket head and the hosted SCMT insert require a minimum of 16mm radial clearance to pass into the hole without scraping the back of the tool neck.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; font-size: 20px; border-bottom: 2px solid #47479F; padding-bottom: 5px; margin-top: 30px;\"\u003e9. Technical Maintenance \u0026amp; Troubleshooting Guidelines\u003c\/h2\u003e\n\u003cdiv style=\"margin-top: 15px;\"\u003e\n\u003cdiv style=\"background-color: #f0f2f5; padding: 15px; border-radius: 4px; margin-bottom: 12px;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; color: #333; font-size: 14px; border-left: 3px solid #47479F; padding-left: 8px;\"\u003eEquivalent Industry Models\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 12px; color: #555;\"\u003eInterchangeable globally with standard international metric \u003cstrong\u003eS12M-SSSCR09\u003c\/strong\u003e precision right-hand screw-clamped boring bars. For standard American imperial lathe turrets, this 12mm solid cylindrical steel shank serves as a direct drop-in for 1\/2-inch boring bar blocks or tool blocks using appropriate precision split reduction sleeves.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f0f2f5; padding: 15px; border-radius: 4px; margin-bottom: 12px;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; color: #333; font-size: 14px; border-left: 3px solid #47479F; padding-left: 8px;\"\u003eTroubleshooting Tips\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 12px; color: #555;\"\u003e\u003cstrong\u003eMicro-Chatter Waves or Poor Bore Finish:\u003c\/strong\u003e Always ensure the tool tip center line lines up exactly with the machine spindle centerline (±0.01mm). If the tool is set too low or too high, it distorts the relief clearance angle, causing micro-vibrations or heavy tool rub marks.\u003cbr\u003e\u003cstrong\u003eFastener Binding or Torx Screw Stripping:\u003c\/strong\u003e High-temperature metal swarf can generate extreme localized heat during deep-hole cuts. Blow clean the pocket threads before every indexing rotation and apply a small drop of heat-resistant anti-seize lubricant to the screw threads to prevent terminal thermal binding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #f0f2f5; padding: 15px; border-radius: 4px;\"\u003e\n\u003ch4 style=\"margin: 0 0 8px 0; color: #333; font-size: 14px; border-left: 3px solid #47479F; padding-left: 8px;\"\u003eWorkpiece Material Matrix\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 12px; color: #555;\"\u003eOptimized across critical industrial engineering manufacturing stock material classifications: \u003cstrong\u003eP\u003c\/strong\u003e (Carbon, Low-Alloy \u0026amp; Pre-hardened Mild Steels), \u003cstrong\u003eM\u003c\/strong\u003e (Austenitic, Ferritic \u0026amp; Duplex Stainless steel variants), \u003cstrong\u003eK\u003c\/strong\u003e (Grey \u0026amp; Ductile Cast Irons), \u003cstrong\u003eN\u003c\/strong\u003e (Non-ferrous Aluminum Castings, Copper, Brass Alloys \u0026amp; Dense Polymers), and \u003cstrong\u003eS\u003c\/strong\u003e (High-Temperature Superalloys \u0026amp; Aerospace Titanium).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":40763756675244,"sku":"S12M-SSSCR09","price":14.67,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S12M-SSSCR09_precision_indexable_right-hand_internal_hole_steel_boring_bar_with_12mm_solid_shank_150mm_length_45_degree_approach_angle_screw_lock_system_for_SCMT_09T304_turning_inserts.jpg?v=1789555964"},{"product_id":"beyond-s12m-sskcr09-boring-bar-holder","title":"BEYOND S12M-SSKCR09 Boring Bar | 12mm CNC Lathe Right Hand Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S12M-SSKCR09 Boring Bar – 12mm Right Hand Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching right-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which right-hand 12mm boring bar ensures optimum chip evacuation and rigid structural stability for small-bore internal turning with SCMT 09T3 inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S12M-SSKCR09\u003c\/strong\u003e represents the definitive industrial standard for a \u003cstrong\u003eSolid Alloy Steel Right Hand Internal Turning Boring Bar\u003c\/strong\u003e, precision-developed to execute highly consistent internal profiling, boring, and face cycles on modern CNC lathes. Engineered with an ultra-compact \u003cstrong\u003e12mm shank diameter\u003c\/strong\u003e and a versatile \u003cstrong\u003e150mm overall length\u003c\/strong\u003e, this tool holder delivers an outstanding balance of structural mass and micro-bore accessibility. It acts as a rugged barrier against harmonic micro-chatter during deep internal passes within tight dimensions, ensuring tighter dimensional repeatability across continuous production shifts.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is meticulously pocket-milled to house standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e square indexable carbide inserts. Incorporating a 75-degree side cutting approach angle, it effectively redirects high radial push deflection into stable axial forces running straight down the longitudinal core of the 12mm alloy steel body. When paired with high-performance positive-ground chipbreaker geometries, the cutting edge splits tough workpiece fibers seamlessly. The specialized orientation of the insert pocket forces instant chip breaking, snapping continuous metal ribbons into compact, light swarf spirals that lift out smoothly from a minimum bore clearance of 16mm, protecting the machined surface from scratching or bird-nesting traps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Right-Hand (RH) Precision:\u003c\/strong\u003e Fully optimized configuration for conventional forward spindle directions and standard turret turning paths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum-Hardened Alloy Steel Body:\u003c\/strong\u003e Thermal-treated matrix increases fatigue limits and yields superior dampening characteristics under variable chip thicknesses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Taper-Preventing Approach Geometry:\u003c\/strong\u003e Converts radial push back into structural compression load, maintaining extreme boring straightness over micro-diameter internal bores.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Torx Screw Clamping System:\u003c\/strong\u003e Utilizes a highly flush M3.5 screw locking mechanism that completely eliminates bulky top clamps, maximizing clear chip evacuation space in restricted cavities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS12M-SSKCR09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e12\u003c\/strong\u003e12mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eM\u003c\/strong\u003e150mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 mm\u003c\/td\u003e\n\u003ctd\u003e0.4724 inches (Adapts flawlessly inside standard 1\/2\" split reduction sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150 mm\u003c\/td\u003e\n\u003ctd\u003e5.9055 inches (Compact format optimized for stable micro-bore internal profiles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003ctd\u003e0.6299 inches (Provides exceptional clearance for clean chip removal in narrow cavities)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size, 3.97mm Thick)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e100 - 170 m\/min (328 - 557 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.04 - 0.14 mm\/rev (0.0015 - 0.0055 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e60 - 110 m\/min (196 - 360 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.03 - 0.10 mm\/rev (0.0011 - 0.0039 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e70 - 140 m\/min (229 - 459 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.05 - 0.18 mm\/rev (0.0019 - 0.0070 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe rigid steel composition and popular 12mm right-hand geometry make the S12M-SSKCR09 a versatile asset across production fields:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicro-Bore Internal Profiling:\u003c\/strong\u003e Highly efficient for boring out precision valve sleeves, small pump housings, and custom motorcycle hub components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Step Internal Profiling:\u003c\/strong\u003e The 75° approach angle allows the tool to run continuous profiling paths, interpolating intricate internal steps with high accuracy in tight quarters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall-Scale Components:\u003c\/strong\u003e Extensively deployed across general workshops for machining miniature hydraulic sleeves, custom brass bushings, and precision instrument fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 12mm cylindrical tool body locks firmly into industry-standard metric CNC lathe turrets, static VDI\/BMT tool block clamps, and linear gang-tool slides. For workshops operating on imperial standards, it adapts flawlessly inside standard 1\/2-inch imperial split bushes. This boring bar is fully compatible with premium CNC turning center equipment, including Haas, Mazak, DN Solutions\/Doosan, Okuma, Mori Seiki, and automated multi-axis mill-turn cells.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S12M-SSKCR09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eBEYOND manufacturing centers strictly on micro-geometric tolerances. The S12M-SSKCR09 boring bar undergoes rigorous multi-axis automated milling and specialized induction heat treatments. By holding our indexable pocket seats within an ultra-precise ±0.01mm limit, we eliminate carbide micro-movement under heavy pounding. This ensures exceptional tool predictability, preventing unexpected part scrap and reducing downtime across your machining shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Incredible micro-bore rigidity for 12mm shank steel\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe dropped this 12mm bar into a 1\/2 inch split sleeve on our CNC turret. Absolute game changer for our tiny internal profiles. The SCMT 09T3 inserts hold up beautifully with zero chatter marks.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Marcus T., Precision Lab Tech (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Perfekt für kleine Bohrungen ab 16mm\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eDer 12mm Stahlschaft dämpft Schwingungen erstaunlich gut für diese kompakte Größe. Wir fertigen damit kleine Ventilhülsen aus Edelstahl. SCMT 09T3 Wendeschneidplatten sitzen absolut spielfrei.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Hans B., CNC Specialist (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★¼☆☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo stelo da 12mm\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSolid alloy steel layout. The 75-degree lead angle handles small internal steps very accurately with minimal push-off deflection. Pocket tolerances are incredibly precise.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Giovanni F., Machine Shop Supervisor (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"小径内径加工に最高の安定感\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e12mmシャンクながら剛性が高く、切り屑の排出スペースも十分に確保できます。SCMTチップがガタつきなくロックされるので安心です。仕上げ面も非常に綺麗に出ます。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Kenji S., Precision Turning Lead (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Excellent chip evacuation on blind micro-holes\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe low-profile screw clamp design leaves the top of the bar completely flush. When combined with polished SCGT inserts for aluminum, chips break cleanly and fly straight out with standard flood coolant.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Oliver D., Aerospace CNC Programmer (United Kingdom)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What specific insert models match the pocket of the S12M-SSKCR09 boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: This tool holder is exclusively designed to mount standard \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e indexable square inserts. The '09' indicates a cutting edge length of 9.525mm, and the 'T3' represents a body thickness of 3.97mm.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this 12mm tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum clear operating bore diameter (D-min) is approximately \u003cstrong\u003e16mm (0.6299 inches)\u003c\/strong\u003e. Attempting to feed this boring bar into a diameter smaller than 16mm will cause the back relief heel of the cutting head structure to rub heavily against the inside walls, destroying your surface finish.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use imperial SCMT 3(2.5)2 inserts on this metric S12M-SSKCR09 tool body?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: Yes. The metric specification '09' refers to a 9.525mm cutting edge length, which is identical to the 3\/8\" Inscribed Circle (IC) standard used in imperial \u003cstrong\u003eSCMT 3(2.5)x\u003c\/strong\u003e inserts. Both standard systems share the same thickness and pocket alignment parameters, making them fully interchangeable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In standard North American imperial machine catalogs, a 12mm metric tool body serves as a direct, high-precision alternative to a 1\/2-inch (0.500\") imperial right-hand boring bar when utilizing generic imperial split reduction bush systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Rapid Edge Flaking \/ Chipping:\u003c\/em\u003e Ensure your center height alignment is calibrated perfectly on the spindle center. Being even 0.05mm off-center radically alters the effective clearance angle, increasing friction and chipping the carbide tip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Chip Bird-Nesting inside Bore:\u003c\/em\u003e SCMT square inserts require positive forward feed energy to trigger the chipbreaker groove. Due to the small 12mm shank size, ensure you are not under-feeding, which causes the chip to rub rather than snap cleanly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618132787372,"sku":"S12M-SSKCR09","price":16.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S12M-SSKCR09_right_hand_boring_bar_12mm_alloy_steel_shank_for_SCMT09T3_indexable_carbide_turning_inserts_anti_vibration.jpg?v=1780885279"},{"product_id":"beyond-s12m-sskcl09-boring-bar-holder","title":"BEYOND S12M-SSKCL09 Left Hand Boring Bar | 12mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S12M-SSKCL09 Boring Bar – 12mm Left Hand Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching left-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which left-hand 12mm boring bar ensures optimum chip evacuation and rigid structural stability for small-bore internal turning with SCMT 09T3 inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S12M-SSKCL09\u003c\/strong\u003e represents the definitive industrial standard for a \u003cstrong\u003eSolid Alloy Steel Left Hand Internal Turning Boring Bar\u003c\/strong\u003e, precision-developed to execute highly consistent internal profiling, boring, and face cycles on modern CNC lathes. Engineered with an ultra-compact \u003cstrong\u003e12mm shank diameter\u003c\/strong\u003e and a versatile \u003cstrong\u003e150mm overall length\u003c\/strong\u003e, this tool holder delivers an outstanding balance of structural mass and micro-bore accessibility. It acts as a rugged barrier against harmonic micro-chatter during medium-depth internal passes within tight dimensions, ensuring tighter dimensional repeatability across continuous production shifts.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is meticulously pocket-milled to house standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e square indexable carbide inserts. Incorporating a 75-degree side cutting approach angle, it effectively redirects high radial push deflection into stable axial forces running straight down the longitudinal core of the 12mm alloy steel body. When paired with high-performance positive-ground chipbreaker geometries, the cutting edge splits tough workpiece fibers seamlessly. The specialized orientation of the insert pocket forces instant chip breaking, snapping continuous metal ribbons into compact, light swarf spirals that lift out smoothly from a minimum bore clearance of 16mm, protecting the machined surface from scratching or bird-nesting traps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Left-Hand (LH) Layout:\u003c\/strong\u003e Fully optimized configuration for reverse spindle directions (M04) and specific turret clamping setups in confined tooling zones.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum-Hardened Alloy Steel Body:\u003c\/strong\u003e Thermal-treated matrix increases fatigue limits and yields superior dampening characteristics under variable chip thicknesses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Taper-Preventing Approach Geometry:\u003c\/strong\u003e Converts radial push back into structural compression load, maintaining extreme boring straightness over micro-diameter internal bores.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Torx Screw Clamping System:\u003c\/strong\u003e Utilizes a highly flush M3.5 screw locking mechanism that completely eliminates bulky top clamps, maximizing clear chip evacuation space in restricted cavities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS12M-SSKCL09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e12\u003c\/strong\u003e12mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eM\u003c\/strong\u003e150mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003eLeft-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 mm\u003c\/td\u003e\n\u003ctd\u003e0.4724 inches (Adapts flawlessly inside standard 1\/2\" split reduction sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150 mm\u003c\/td\u003e\n\u003ctd\u003e5.9055 inches (Compact format optimized for stable micro-bore internal profiles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003ctd\u003e0.6299 inches (Provides exceptional clearance for clean chip removal in narrow cavities)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size, 3.97mm Thick)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e100 - 170 m\/min (328 - 557 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.04 - 0.14 mm\/rev (0.0015 - 0.0055 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e60 - 110 m\/min (196 - 360 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.03 - 0.10 mm\/rev (0.0011 - 0.0039 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e70 - 140 m\/min (229 - 459 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.05 - 0.18 mm\/rev (0.0019 - 0.0070 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe rigid steel composition and popular 12mm left-hand geometry make the S12M-SSKCL09 a versatile asset across production fields:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMicro-Bore Internal Profiling \u0026amp; Back-Turning:\u003c\/strong\u003e Exceptionally efficient for machining internal channels from the inside out or executing specialized back-boring cycles in miniature components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Step Internal Profiling:\u003c\/strong\u003e The 75° approach angle allows the tool to run continuous profiling paths, interpolating intricate internal steps with high accuracy in tight quarters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall-Scale Components:\u003c\/strong\u003e Extensively deployed across general workshops for machining miniature hydraulic sleeves, custom brass bushings, and precision instrument fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 12mm cylindrical tool body locks firmly into industry-standard metric CNC lathe turrets, static VDI\/BMT tool block clamps, and linear gang-tool slides. For workshops operating on imperial standards, it adapts flawlessly inside standard 1\/2-inch imperial split bushes. This boring bar is fully compatible with premium CNC turning center equipment, including Haas, Mazak, DN Solutions\/Doosan, Okuma, Mori Seiki, and automated multi-axis mill-turn cells.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S12M-SSKCL09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eBEYOND manufacturing centers strictly on micro-geometric tolerances. The S12M-SSKCL09 boring bar undergoes rigorous multi-axis automated milling and specialized induction heat treatments. By holding our indexable pocket seats within an ultra-precise ±0.01mm limit, we eliminate carbide micro-movement under heavy pounding. This ensures exceptional tool predictability, preventing unexpected part scrap and reducing downtime across your machining shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Incredible micro-bore rigidity for 12mm shank steel\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe dropped this 12mm left-hand bar into a 1\/2 inch split sleeve on our Citizen gang-tool lathe. Absolute game changer for our tiny back-boring cycles. The SCMT 09T3 inserts hold up beautifully with zero chatter marks.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Marcus T., Precision Lab Tech (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Perfekt für kleine Bohrungen ab 16mm\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eDer 12mm Stahlschaft dämpft Schwingungen erstaunlich gut für diese kompakte Größe. Wir fertigen damit kleine Ventilhülsen aus Edelstahl. Da es sich um eine linksbündige Ausführung handelt, ideal für unsere spezifische Revolverbelegung.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Hans B., CNC Specialist (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo stelo sinistro da 12mm\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSolid alloy steel layout. The 75-degree lead angle handles small internal steps very accurately with minimal push-off deflection. Pocket tolerances are incredibly precise.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Giovanni F., Machine Shop Supervisor (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"小径内径加工に最高の安定感\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e逆転主軸（M04）での微小内径加工用に導入しました。12mmシャンクながら剛性が高く、切り屑の排出スペースも十分に確保できます。SCMTチップがガタつきなくロックされるので安心です。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Kenji S., Precision Turning Lead (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Excellent chip evacuation on blind micro-holes\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eLeft-hand setups in tight 16mm bores can sometimes be tricky with chip wrapping, but the low-profile screw design on this bar clears everything smoothly under standard flood coolant.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Oliver D., Aerospace CNC Programmer (United Kingdom)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What specific insert models match the pocket of the S12M-SSKCL09 boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: This tool holder is exclusively designed to mount standard \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e indexable square inserts. The '09' indicates a cutting edge length of 9.525mm, and the 'T3' represents a body thickness of 3.97mm. Note that since this is a left-hand (L) bar, it typically utilizes right-hand or neutral chipbreaker inserts depending on your turret setup and cutting direction.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this 12mm tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum clear operating bore diameter (D-min) is approximately \u003cstrong\u003e16mm (0.6299 inches)\u003c\/strong\u003e. Attempting to feed this boring bar into a diameter smaller than 16mm will cause the back relief heel of the left-handed head structure to rub heavily against the inside walls, destroying your surface finish.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use imperial SCMT 3(2.5)2 inserts on this metric S12M-SSKCL09 tool body?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: Yes. The metric specification '09' refers to a 9.525mm cutting edge length, which is identical to the 3\/8\" Inscribed Circle (IC) standard used in imperial \u003cstrong\u003eSCMT 3(2.5)x\u003c\/strong\u003e inserts. Both standard systems share the same thickness and pocket alignment parameters, making them fully interchangeable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In standard North American imperial machine catalogs, a 12mm metric tool body serves as a direct, high-precision alternative to a 1\/2-inch (0.500\") imperial left-hand boring bar when utilizing generic imperial split reduction bush systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Rapid Edge Flaking \/ Chipping:\u003c\/em\u003e Ensure your center height alignment is calibrated perfectly on the spindle center. For left-hand bars, being even 0.05mm off-center radically alters the effective clearance angle, increasing friction and chipping the carbide tip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Chip Bird-Nesting inside Bore:\u003c\/em\u003e SCMT square inserts require positive forward feed energy to trigger the chipbreaker groove. Due to the small 12mm shank size, ensure you are not under-feeding, which causes the chip to rub rather than snap cleanly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618134556844,"sku":"S12M-SSKCL09","price":16.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S12M-SSKCL09_left_hand_boring_bar_12mm_alloy_steel_shank_for_SCMT09T3_indexable_carbide_turning_inserts_anti_vibration.jpg?v=1780885141"},{"product_id":"beyond-s14n-sskcr09-boring-bar-holder","title":"BEYOND S14N-SSKCR09 Boring Bar | 14mm CNC Lathe Right Hand Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S14N-SSKCR09 Boring Bar – 14mm Right Hand Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching right-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which right-hand 14mm boring bar ensures optimum chip evacuation and rigid structural stability for small-bore internal turning with SCMT 09T3 inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S14N-SSKCR09\u003c\/strong\u003e represents the definitive industrial standard for a \u003cstrong\u003eSolid Alloy Steel Right Hand Internal Turning Boring Bar\u003c\/strong\u003e, precision-developed to execute highly consistent internal profiling, boring, and face cycles on modern CNC lathes. Engineered with an ultra-compact \u003cstrong\u003e14mm shank diameter\u003c\/strong\u003e and a versatile \u003cstrong\u003e160mm overall length\u003c\/strong\u003e, this tool holder delivers an outstanding balance of structural mass and small-aperture accessibility. It acts as a rugged barrier against harmonic micro-chatter during deep internal passes within tight dimensions, ensuring tighter dimensional repeatability across continuous production shifts.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is meticulously pocket-milled to house standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e square indexable carbide inserts. Incorporating a 75-degree side cutting approach angle, it effectively redirects high radial push deflection into stable axial forces running straight down the longitudinal core of the 14mm alloy steel body. When paired with high-performance positive-ground chipbreaker geometries, the cutting edge splits tough workpiece fibers seamlessly. The specialized orientation of the insert pocket forces instant chip breaking, snapping continuous metal ribbons into compact, light swarf spirals that lift out smoothly from a minimum bore clearance of 18mm, protecting the machined surface from scratching or bird-nesting traps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Right-Hand (RH) Precision:\u003c\/strong\u003e Fully optimized configuration for conventional forward spindle directions and standard turret turning paths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum-Hardened Alloy Steel Body:\u003c\/strong\u003e Thermal-treated matrix increases fatigue limits and yields superior dampening characteristics under variable chip thicknesses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Taper-Preventing Approach Geometry:\u003c\/strong\u003e Converts radial push back into structural compression load, maintaining extreme boring straightness over small-diameter internal bores.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Torx Screw Clamping System:\u003c\/strong\u003e Utilizes a highly flush M3.5 screw locking mechanism that completely eliminates bulky top clamps, maximizing clear chip evacuation space in restricted cavities.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS14N-SSKCR09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e14\u003c\/strong\u003e14mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eN\u003c\/strong\u003e160mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14 mm\u003c\/td\u003e\n\u003ctd\u003e0.5512 inches (Adapts effortlessly inside standard 9\/16\" or 5\/8\" split reduction sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e160 mm\u003c\/td\u003e\n\u003ctd\u003e6.2992 inches (Standard format optimized for stable mid-depth small bore cycles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18 mm\u003c\/td\u003e\n\u003ctd\u003e0.7086 inches (Provides exceptional clearance for clean chip removal in narrow cavities)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size, 3.97mm Thick)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e110 - 180 m\/min (360 - 590 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.05 - 0.16 mm\/rev (0.0020 - 0.0063 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e65 - 120 m\/min (213 - 393 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.04 - 0.12 mm\/rev (0.0015 - 0.0047 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e80 - 150 m\/min (262 - 492 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.06 - 0.20 mm\/rev (0.0023 - 0.0078 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts?\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e \u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe rigid steel composition and popular 14mm right-hand geometry make the S14N-SSKCR09 a versatile asset across production fields:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall-Diameter Internal Cylinder Boring:\u003c\/strong\u003e Highly efficient for boring out precision valve sleeves, small pump housings, and custom motorcycle hub components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Step Internal Profiling:\u003c\/strong\u003e The 75° approach angle allows the tool to run continuous profiling paths, interpolating intricate internal steps with high accuracy in tight quarters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium-Depth Precision Bushings:\u003c\/strong\u003e Extensively deployed across general job shops for machining custom brass\/bronze bearings, hydraulic connectors, and specialized pipeline fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 14mm cylindrical tool body locks firmly into industry-standard metric CNC lathe turrets, static VDI\/BMT tool block clamps, and linear gang-tool slides. For workshops operating on imperial standards, it adapts flawlessly inside standard 9\/16-inch or 5\/8-inch imperial split bushes. This boring bar is fully compatible with premium CNC turning center equipment, including Haas, Mazak, DN Solutions\/Doosan, Okuma, Mori Seiki, and automated multi-axis mill-turn cells.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S14N-SSKCR09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eBEYOND manufacturing centers strictly on micro-geometric tolerances. The S14N-SSKCR09 boring bar undergoes rigorous multi-axis automated milling and specialized induction heat treatments. By holding our indexable pocket seats within an ultra-precise ±0.01mm limit, we eliminate carbide micro-movement under heavy pounding. This ensures exceptional tool predictability, preventing unexpected part scrap and reducing downtime across your machining shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Unmatched stability for a 14mm steel shank boring bar\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe use these S14N bars to machine tight 20mm bores in alloy steel. The structural rigidity is impressive for a 14mm shank. The SCMT 09T3 insert seats perfectly with absolutely zero pocket movement under heavy loads.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Derrick W., CNC Workshop Owner (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Perfekte Passform für enge Bohrungen\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eDer 14mm Stahlschaft eliminiert Vibrationen erstaunlich gut bei einer Auskragung von 45mm. SCMT 09T3 Wendeschneidplatten sitzen absolut spielfrei. Die Spanabfuhr funktioniert dank des schlanken Kopfdesigns tadellos.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Klaus M., CNC Manufacturing Lead (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Eccellente per piccoli diametri\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eGreat performance on medium-carbon steel loops. The 75-degree approach angle correctly directs cutting forces along the axis, minimizing deflection issues on our standard CNC lathe line.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Alberto R., CNC Operator (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"小径のビビリ対策に非常に効果的です\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e最小加工径18mmのスリーブ加工で大活躍しています。14mmシャンクでありながら剛性が高く、切り屑の排出スペースも十分に確保できます。4コーナー使えるSCMTチップのおかげでコスト面でも助かっています。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Takashi H., Precision Machinist (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Outstanding chip clearance in restricted spaces\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe low-profile screw clamp design leaves the top of the bar completely flush. When combined with polished SCGT inserts for aluminum, chips break cleanly and fly straight out with standard flood coolant.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Fraser G., Aerospace Component Manufacturer (United Kingdom)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What specific insert models match the pocket of the S14N-SSKCR09 boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: This tool holder is exclusively designed to mount standard \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e indexable square inserts. The '09' indicates a cutting edge length of 9.525mm, and the 'T3' represents a body thickness of 3.97mm.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this 14mm tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum clear operating bore diameter (D-min) is \u003cstrong\u003e18mm (0.7086 inches)\u003c\/strong\u003e. Attempting to feed this boring bar into a diameter smaller than 18mm will cause the back relief heel of the cutting head to rub heavily against the inside walls, destroying your surface finish and chipping the insert tip.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use imperial SCMT 3(2.5)2 inserts on this metric S14N-SSKCR09 tool body?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: Yes. The metric specification '09' refers to a 9.525mm cutting edge length, which is identical to the 3\/8\" Inscribed Circle (IC) standard used in imperial \u003cstrong\u003eSCMT 3(2.5)x\u003c\/strong\u003e inserts. Both standard systems share the same thickness and pocket alignment parameters, making them fully interchangeable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In standard North American imperial machine catalogs, a 14mm metric tool body serves as a direct, high-precision alternative to a 9\/16-inch or 5\/8-inch imperial right-hand boring bar when utilizing generic imperial split reduction bush systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Rapid Edge Flaking \/ Chipping:\u003c\/em\u003e Ensure your center height alignment is calibrated perfectly on the spindle center. Being even 0.1mm above or below center radically alters the effective clearance angle, increasing friction and chipping the carbide tip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Line Chatter Marks:\u003c\/em\u003e Check the overhang ratio. The recommended maximum extension length for a solid steel shank boring bar is 3-4 times the diameter (42mm - 56mm for this 14mm tool). Exceeding this will cause harmonic deflection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618135933100,"sku":"S14N-SSKCR09","price":16.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S14N-SSKCR09_right_hand_boring_bar_14mm_alloy_steel_shank_for_SCMT09T3_indexable_carbide_turning_inserts_anti_vibration.jpg?v=1780884997"},{"product_id":"beyond-s16q-sskcl09-boring-bar-holder","title":"BEYOND S16Q-SSKCL09 Left Hand Boring Bar | 16mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S16Q-SSKCL09 Boring Bar – 16mm Left Hand Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching left-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which left-hand 16mm boring bar ensures optimum chip evacuation and rigid structural stability for reverse spindle internal turning with SCMT 09T3 inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S16Q-SSKCL09\u003c\/strong\u003e represents the definitive industrial standard for a \u003cstrong\u003eSolid Alloy Steel Left Hand Internal Turning Boring Bar\u003c\/strong\u003e, precision-developed to execute highly consistent internal profiling, boring, and face cycles on modern CNC lathes. Engineered with a compact \u003cstrong\u003e16mm shank diameter\u003c\/strong\u003e and a versatile \u003cstrong\u003e180mm overall length\u003c\/strong\u003e, this tool holder delivers an outstanding balance of structural mass and small-bore accessibility. It acts as a rugged barrier against harmonic micro-chatter during medium-depth internal passes, ensuring tighter dimensional repeatability across continuous production shifts.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is meticulously pocket-milled to house standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e square indexable carbide inserts. Incorporating a 75-degree side cutting approach angle, it effectively redirects high radial push deflection into stable axial forces running straight down the longitudinal core of the 16mm alloy steel body. When paired with high-performance positive-ground chipbreaker geometries, the cutting edge splits tough workpiece fibers seamlessly. The specialized orientation of the insert pocket forces instant chip breaking, snapping continuous metal ribbons into compact, light swarf spirals that lift out smoothly from a minimum bore clearance of 21mm, protecting the machined surface from scratching or bird-nesting traps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Left-Hand (LH) Layout:\u003c\/strong\u003e Fully optimized configuration for reverse spindle directions (M04) and specific turret clamping requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum-Hardened Alloy Steel Body:\u003c\/strong\u003e Thermal-treated matrix increases fatigue limits and yields superior dampening characteristics under variable chip thicknesses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Taper-Preventing Approach Geometry:\u003c\/strong\u003e Converts radial push back into structural compression load, maintaining extreme boring straightness over medium-depth bores.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Torx Screw Clamping System:\u003c\/strong\u003e Utilizes a highly flush M3.5 screw locking mechanism that completely eliminates bulky top clamps, maximizing clear chip evacuation space.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS16Q-SSKCL09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e16\u003c\/strong\u003e16mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eQ\u003c\/strong\u003e180mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003eLeft-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003ctd\u003e0.6250 inches (Fits perfectly within standard 5\/8\" imperial split reduction sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e180 mm\u003c\/td\u003e\n\u003ctd\u003e7.0866 inches (Compact format optimized for versatile mid-depth internal turning)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e21 mm\u003c\/td\u003e\n\u003ctd\u003e0.8267 inches (Provides exceptional clearance for clean chip removal in tight bores)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size, 3.97mm Thick)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e120 - 190 m\/min (393 - 623 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.06 - 0.18 mm\/rev (0.0023 - 0.0070 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e70 - 130 m\/min (229 - 426 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.05 - 0.14 mm\/rev (0.0019 - 0.0055 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e80 - 160 m\/min (262 - 524 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.22 mm\/rev (0.0031 - 0.0086 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe rigid steel composition and popular 16mm left-hand geometry make the S16Q-SSKCL09 a versatile asset across production fields:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand Boring and Back-Turning:\u003c\/strong\u003e Highly efficient for machining internal profiles from the inside out or executing specialized back-boring operations in tighter cavities.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Step Internal Profiling:\u003c\/strong\u003e The 75° approach angle allows the tool to run continuous profiling paths, interpolating intricate internal steps with high accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall-Bore Component Machining:\u003c\/strong\u003e Extensively deployed across general workshops for machining hydraulic valve blocks, custom bushings, and aerospace components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 16mm cylindrical tool body locks firmly into industry-standard metric CNC lathe turrets, static VDI\/BMT tool block clamps, and linear gang-tool slides. For workshops operating on imperial standards, it adapts flawlessly inside standard 5\/8-inch imperial split bushes. This boring bar is fully compatible with premium CNC turning center equipment, including Haas, Mazak, DN Solutions\/Doosan, Okuma, Mori Seiki, and automated multi-axis mill-turn cells.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S16Q-SSKCL09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eBEYOND manufacturing centers strictly on micro-geometric tolerances. The S16Q-SSKCL09 boring bar undergoes rigorous multi-axis automated milling and specialized induction heat treatments. By holding our indexable pocket seats within an ultra-precise ±0.01mm limit, we eliminate carbide micro-movement under heavy pounding. This ensures exceptional tool predictability, preventing unexpected part scrap and reducing downtime across your machining shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Flawless rigidity on 5\/8 inch imperial bush setups\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe dropped this 16mm left-hand bar into a standard 5\/8 split sleeve on our Haas lathe. Absolute game changer for our back-boring cycles. The SCMT 09T3 inserts hold up beautifully with zero chatter marks.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— David K., Tooling Engineer (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Präziser Plattensitz und exzellente Spankontrolle\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eDer 16mm Stahlschaft dämpft Schwingungen erstaunlich gut für diese kompakte Größe. Wir fertigen damit Ventilhülsen aus Edelstahl. Da es sich um eine linksbündige Ausführung handelt, ideal für unsere spezifische Revolverbelegung.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Jürgen S., CNC Specialist (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo stelo sinistro da 16mm\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSolid alloy steel layout. The 75-degree lead angle handles internal steps very accurately with minimal push-off deflection. Pocket tolerances are incredibly precise.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Matteo G., CNC Operator (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"小径内径加工に最高の安定感\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e逆転主軸（M04）でのバックボーリング用に導入しました。16mmシャンクながら剛性が高く、切り屑の排出スペースも十分に確保できます。SCMTチップがガタつきなくロックされるので安心です。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Hiroshi T., Workshop Lead (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Excellent chip evacuation on blind holes\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eLeft-hand setups can sometimes be tricky with chip wrapping, but the low-profile screw design on this bar clears everything smoothly under high pressure coolant. Highly recommended.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Liam M., CNC Turning Specialist (United Kingdom)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What specific insert models match the pocket of the S16Q-SSKCL09 boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: This tool holder is exclusively designed to mount standard \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e indexable square inserts. The '09' indicates a cutting edge length of 9.525mm, and the 'T3' represents a body thickness of 3.97mm. Note that since this is a left-hand (L) bar, it typically utilizes right-hand or neutral chipbreaker inserts depending on your turret setup and cutting direction.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this 16mm tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum clear operating bore diameter (D-min) is approximately \u003cstrong\u003e21mm (0.8267 inches)\u003c\/strong\u003e. Attempting to feed this boring bar into a diameter smaller than 21mm will cause the back relief heel of the left-handed head structure to rub heavily against the inside walls, destroying your surface finish.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use imperial SCMT 3(2.5)2 inserts on this metric S16Q-SSKCL09 tool body?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: Yes. The metric specification '09' refers to a 9.525mm cutting edge length, which is identical to the 3\/8\" Inscribed Circle (IC) standard used in imperial \u003cstrong\u003eSCMT 3(2.5)x\u003c\/strong\u003e inserts. Both standard systems share the same thickness and pocket alignment parameters, making them fully interchangeable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In standard North American imperial machine catalogs, a 16mm metric tool body serves as a direct, high-precision alternative to a 5\/8-inch (0.625\") imperial left-hand boring bar when utilizing generic imperial split reduction bush systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Rapid Edge Flaking \/ Chipping:\u003c\/em\u003e Ensure your center height alignment is calibrated perfectly on the spindle center. For left-hand bars, being even 0.1mm off-center radically alters the effective clearance angle, increasing friction and chipping the carbide tip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Chip Bird-Nesting inside Bore:\u003c\/em\u003e SCMT square inserts require positive forward feed energy to trigger the chipbreaker groove. If your chips are nesting, increase the feed rate (f) slightly or choose a specialized positive-ground chipbreaker geometry (like SCGT).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618171158700,"sku":"S16Q-SSKCL09","price":18.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S16Q-SSKCL09_left_hand_boring_bar_16mm_alloy_steel_shank_for_SCMT09T3_indexable_carbide_turning_inserts_anti_vibration.jpg?v=1780884675"},{"product_id":"beyond-s20r-sskcr09-boring-bar-holder","title":"BEYOND S20R-SSKCR09 Boring Bar | 20mm CNC Lathe Right Hand Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S20R-SSKCR09 Boring Bar – 20mm Right Hand Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching right-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which right-hand 20mm boring bar ensures optimum chip evacuation and rigid structural stability for everyday internal turning with SCMT 09T3 inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S20R-SSKCR09\u003c\/strong\u003e represents the definitive industrial standard for a \u003cstrong\u003eSolid Alloy Steel Right Hand Internal Turning Boring Bar\u003c\/strong\u003e, precision-developed to execute highly consistent internal profiling, boring, and face cycles on modern CNC lathes. Engineered with an optimal \u003cstrong\u003e20mm shank diameter\u003c\/strong\u003e and a versatile \u003cstrong\u003e200mm overall length\u003c\/strong\u003e, this tool holder delivers an outstanding balance of structural mass and bore accessibility. It acts as a rugged barrier against harmonic micro-chatter during deep internal passes, ensuring tighter dimensional repeatability across continuous production shifts.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is meticulously pocket-milled to house standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e square indexable carbide inserts. Incorporating a 75-degree side cutting approach angle, it effectively redirects high radial push deflection into stable axial forces running straight down the longitudinal core of the 20mm alloy steel body. When paired with high-performance positive-ground chipbreaker geometries, the cutting edge splits tough workpiece fibers seamlessly. The specialized orientation of the insert pocket forces instant chip breaking, snapping continuous metal ribbons into compact, light swarf spirals that lift out smoothly from a minimum bore clearance of 25mm, protecting the machined surface from scratching or bird-nesting traps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Right-Hand (RH) Precision:\u003c\/strong\u003e Fully optimized configuration for conventional forward spindle directions and standard turret turning paths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum-Hardened Alloy Steel Body:\u003c\/strong\u003e Thermal-treated matrix increases fatigue limits and yields superior dampening characteristics under variable chip thicknesses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Taper-Preventing Approach Geometry:\u003c\/strong\u003e Converts radial push back into structural compression load, maintaining extreme boring straightness over long internal bores.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Torx Screw Clamping System:\u003c\/strong\u003e Utilizes a highly flush M3.5 screw locking mechanism that completely eliminates bulky top clamps, maximizing clear chip evacuation space.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS20R-SSKCR09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e20\u003c\/strong\u003e20mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003e200mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003ctd\u003e0.7874 inches (Fits perfectly within standard 3\/4\" imperial split reduction sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200 mm\u003c\/td\u003e\n\u003ctd\u003e7.8740 inches (Standard format optimized for versatile mid-depth boring cycles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003ctd\u003e0.9842 inches (Provides exceptional clearance for clean chip removal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size, 3.97mm Thick)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e130 - 210 m\/min (426 - 689 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.22 mm\/rev (0.0031 - 0.0086 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e75 - 140 m\/min (246 - 459 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.06 - 0.16 mm\/rev (0.0024 - 0.0063 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e90 - 170 m\/min (295 - 558 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.28 mm\/rev (0.0039 - 0.0110 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e with optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe rigid steel composition and popular 20mm right-hand geometry make the S20R-SSKCR09 a versatile asset across production fields:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Internal Cylinder Boring:\u003c\/strong\u003e Highly efficient for boring out structural sleeve components, pump blocks, and automotive wheel hubs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Step Internal Profiling:\u003c\/strong\u003e The 75° approach angle allows the tool to run continuous profiling paths, interpolating intricate internal steps with high accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium-Bore Steel Adapters:\u003c\/strong\u003e Extensively deployed across general job shops for machining hydraulic manifolds, custom bushings, and pipeline fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 20mm cylindrical tool body locks firmly into industry-standard metric CNC lathe turrets, static VDI\/BMT tool block clamps, and linear gang-tool slides. For workshops operating on imperial standards, it adapts flawlessly inside standard 3\/4-inch imperial split bushes. This boring bar is fully compatible with premium CNC turning center equipment, including Haas, Mazak, DN Solutions\/Doosan, Okuma, Mori Seiki, and automated multi-axis mill-turn cells.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S20R-SSKCR09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eBEYOND manufacturing centers strictly on micro-geometric tolerances. The S20R-SSKCR09 boring bar undergoes rigorous multi-axis automated milling and specialized induction heat treatments. By holding our indexable pocket seats within an ultra-precise ±0.01mm limit, we eliminate carbide micro-movement under heavy pounding. This ensures exceptional tool predictability, preventing unexpected part scrap and reducing downtime across your machining shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Superb vibration control on our 20mm setup\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe run these S20R bars on our lathe turrets for boring 30mm blind holes. Excellent rigidity for a 20mm steel body. Pocket dimensions are incredibly tight, providing zero insert movement under load.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Marcus T., Machine Shop Owner (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Hervorragende Qualität von BEYOND\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eDer Plattensitz ist perfekt geschliffen. SCMT 09T3 Wendeschneidplatten sitzen absolut spielfrei. Spanabfuhr ist durch das flache Design tadellos. Sehr zu empfehlen für tiefe Bohrungen.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Hans K., Production Engineer (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo rapporto qualità-prezzo\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eVery stable performance in C45 steel. The 75-degree approach angle successfully pushes forces axially rather than radially, which solves our previous chatter problem on internal steps.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Giovanni M., CNC Operator (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"内径加工のビビりが劇的に改善しました\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e20mmシャンクですが剛性が高く、最小加工径25mmの狭いスペースでも切り屑が詰まりません。SCMTチップの4コーナーをフルに活かせるのでコストパフォーマンスも最高です。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Kenji S., Lathe Supervisor (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Flawless chip clearance on deep bores\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe screw clamping design leaves the top of the bar completely unobstructed. Combined with our positive chipbreaker inserts, the stringy steel chips just break off and flush straight out with standard coolant pressure.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Alex D., Aerospace Component Machinist (Canada)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What specific insert models match the pocket of the S20R-SSKCR09 boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: This tool holder is exclusively designed to mount standard \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e indexable square inserts. The '09' indicates a cutting edge length of 9.525mm, and the 'T3' represents a body thickness of 3.97mm.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this 20mm tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum clear operating bore diameter (D-min) is \u003cstrong\u003e25mm (0.9842 inches)\u003c\/strong\u003e. Attempting to feed this boring bar into a diameter smaller than 25mm will cause the back relief heel of the cutting head to rub heavily against the inside walls, destroying your surface finish and chipping the insert tip.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use imperial SCMT 3(2.5)2 inserts on this metric S20R-SSKCR09 tool body?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: Yes. The metric specification '09' refers to a 9.525mm cutting edge length, which is identical to the 3\/8\" Inscribed Circle (IC) standard used in imperial \u003cstrong\u003eSCMT 3(2.5)x\u003c\/strong\u003e inserts. Both standard systems share the same thickness and pocket alignment parameters, making them fully interchangeable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In standard North American imperial machine catalogs, a 20mm metric tool body serves as a direct, high-precision alternative to a 3\/4-inch (0.75\") imperial right-hand boring bar when utilizing generic imperial split reduction bush systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Rapid Edge Flaking \/ Chipping:\u003c\/em\u003e Ensure your center height alignment is calibrated perfectly on the spindle center. Being even 0.1mm above or below center radically alters the effective clearance angle, increasing friction and chipping the carbide tip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Line Chatter Marks:\u003c\/em\u003e Check the overhang ratio. The recommended maximum extension length for a solid steel shank boring bar is 3-4 times the diameter (60mm - 80mm for this tool). Exceeding this will cause harmonic deflection.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618171486380,"sku":"S20R-SSKCR09","price":21.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S20R-SSKCR09_right_hand_boring_bar_20mm_alloy_steel_shank_for_SCMT09T3_indexable_carbide_turning_inserts_anti_vibration.jpg?v=1780884266"},{"product_id":"beyond-s20r-sskcl09-boring-bar-holder","title":"BEYOND S20R-SSKCL09 Left Hand Boring Bar | 20mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S20R-SSKCL09 Boring Bar – 20mm Left Hand Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching left-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which left-hand 20mm boring bar ensures optimum chip evacuation and rigid structural stability for reverse spindle internal turning with SCMT 09T3 inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S20R-SSKCL09\u003c\/strong\u003e represents the definitive industrial standard for a \u003cstrong\u003eSolid Alloy Steel Left Hand Internal Turning Boring Bar\u003c\/strong\u003e, precision-developed to execute highly consistent internal profiling, boring, and face cycles on modern CNC lathes. Engineered with an optimal \u003cstrong\u003e20mm shank diameter\u003c\/strong\u003e and a versatile \u003cstrong\u003e200mm overall length\u003c\/strong\u003e, this tool holder delivers an outstanding balance of structural mass and bore accessibility. It acts as a rugged barrier against harmonic micro-chatter during medium-depth internal passes, ensuring tighter dimensional repeatability across continuous production shifts.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is meticulously pocket-milled to house standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e square indexable carbide inserts. Incorporating a 75-degree side cutting approach angle, it effectively redirects high radial push deflection into stable axial forces running straight down the longitudinal core of the 20mm alloy steel body. When paired with high-performance positive-ground chipbreaker geometries, the cutting edge splits tough workpiece fibers seamlessly. The specialized orientation of the insert pocket forces instant chip breaking, snapping continuous metal ribbons into compact, light swarf spirals that lift out smoothly from a minimum bore clearance of 25mm, protecting the machined surface from scratching or bird-nesting traps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Left-Hand (LH) Layout:\u003c\/strong\u003e Fully optimized configuration for reverse spindle directions (M04) and specific turret clamping requirements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum-Hardened Alloy Steel Body:\u003c\/strong\u003e Thermal-treated matrix increases fatigue limits and yields superior dampening characteristics under variable chip thicknesses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Taper-Preventing Approach Geometry:\u003c\/strong\u003e Converts radial push back into structural compression load, maintaining extreme boring straightness over medium-depth bores.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Torx Screw Clamping System:\u003c\/strong\u003e Utilizes a highly flush M3.5 screw locking mechanism that completely eliminates bulky top clamps, maximizing clear chip evacuation space.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS20R-SSKCL09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e20\u003c\/strong\u003e20mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003e200mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003eLeft-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003ctd\u003e0.7874 inches (Fits perfectly within standard 3\/4\" or 20mm imperial split reduction sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200 mm\u003c\/td\u003e\n\u003ctd\u003e7.8740 inches (Standard format optimized for versatile mid-depth boring cycles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003ctd\u003e0.9842 inches (Provides exceptional clearance for clean chip removal in 1\" bores)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size, 3.97mm Thick)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e130 - 210 m\/min (426 - 689 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.22 mm\/rev (0.0031 - 0.0086 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e75 - 140 m\/min (246 - 459 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.06 - 0.16 mm\/rev (0.0024 - 0.0063 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e90 - 170 m\/min (295 - 558 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.28 mm\/rev (0.0039 - 0.0110 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts?\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e \u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e with optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe rigid steel composition and popular 20mm left-hand geometry make the S20R-SSKCL09 a versatile asset across production fields:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand Boring and Back-Turning:\u003c\/strong\u003e Highly efficient for machining internal profiles from the inside out or executing specialized back-boring operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Step Internal Profiling:\u003c\/strong\u003e The 75° approach angle allows the tool to run continuous profiling paths, interpolating intricate internal steps with high accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall-to-Medium Bore Adapters:\u003c\/strong\u003e Extensively deployed across general job shops for machining hydraulic manifolds, custom bushings, and pipeline fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 20mm cylindrical tool body locks firmly into industry-standard metric CNC lathe turrets, static VDI\/BMT tool block clamps, and linear gang-tool slides. For workshops operating on imperial standards, it adapts flawlessly inside standard 3\/4-inch imperial split bushes. This boring bar is fully compatible with premium CNC turning center equipment, including Haas, Mazak, DN Solutions\/Doosan, Okuma, Mori Seiki, and automated multi-axis mill-turn cells.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S20R-SSKCL09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eBEYOND manufacturing centers strictly on micro-geometric tolerances. The S20R-SSKCL09 boring bar undergoes rigorous multi-axis automated milling and specialized induction heat treatments. By holding our indexable pocket seats within an ultra-precise ±0.01mm limit, we eliminate carbide micro-movement under heavy pounding. This ensures exceptional tool predictability, preventing unexpected part scrap and reducing downtime across your machining shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Perfect solution for our left-hand back-boring cycles\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe needed a reliable 20mm left-hand bar for a custom sub-spindle operation on our Mazak. This BEYOND holder fits perfectly. The SCMT 09T3 inserts clamp down super tightly and the surface finish in alloy steel is absolute glass.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Robert H., Senior Machinist (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Hervorragende Qualität und passgenauer Plattensitz\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSehr gute Dämpfung für eine 20mm Stahlstange. Wir nutzen sie für Linkslauf-Bohrungen in Edelstahl. Die Späne brechen sauber und werden dank des flachen Schraubenkopfs einwandfrei ausgespült.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Markus W., CNC Programmer (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo gambo sinistro, stabile ed economico\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSolid alloy steel layout. Fits our 20mm BMT blocks flawlessly. The 75-degree lead angle handles internal steps very accurately with minimal push-off deflection.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Alessandro L., Production Manager (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"20mmの左勝手ホルダーとして抜群の安定性\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e逆転主軸加工用に購入。SCMTチップの収まりが非常に良く、ビビりが発生しやすい25mm径の小径内径加工でも、抜群の寸法安定性を発揮してくれています。価格以上の価値があります。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Takashi K., Workshop Foreman (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Excellent chip evacuation on blind holes\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eLeft-hand setups can sometimes be tricky with chip wrapping, but the open pocket design on this bar clears everything smoothly under high pressure coolant. No bird-nesting at all.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Julian P., CNC Lathe Specialist (United Kingdom)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What specific insert models match the pocket of the S20R-SSKCL09 boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: This tool holder is exclusively designed to mount standard \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e indexable square inserts. The '09' indicates a cutting edge length of 9.525mm, and the 'T3' represents a body thickness of 3.97mm. Note that since this is a left-hand (L) bar, it typically utilizes right-hand or neutral chipbreaker inserts depending on your cutting direction.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this 20mm tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum clear operating bore diameter (D-min) is \u003cstrong\u003e25mm (0.9842 inches)\u003c\/strong\u003e. Attempting to feed this boring bar into a diameter smaller than 25mm will cause the back relief heel of the left-handed head structure to rub heavily against the inside walls, destroying your surface finish and chipping the insert tip.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use imperial SCMT 3(2.5)2 inserts on this metric S20R-SSKCL09 tool body?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: Yes. The metric specification '09' refers to a 9.525mm cutting edge length, which is identical to the 3\/8\" Inscribed Circle (IC) standard used in imperial \u003cstrong\u003eSCMT 3(2.5)x\u003c\/strong\u003e inserts. Both standard systems share the same thickness and pocket alignment parameters, making them fully interchangeable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In standard North American imperial machine catalogs, a 20mm metric tool body serves as a direct, high-precision alternative to a 3\/4-inch (0.75\") imperial left-hand boring bar when utilizing generic imperial split reduction bush systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Rapid Edge Flaking \/ Chipping:\u003c\/em\u003e Ensure your center height alignment is calibrated perfectly on the spindle center. For left-hand bars, being even 0.1mm off-center radically alters the effective clearance angle, increasing friction and chipping the carbide tip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Chip Bird-Nesting inside Bore:\u003c\/em\u003e SCMT square inserts require positive forward feed energy to trigger the chipbreaker groove. If your chips are nesting, increase the feed rate (f) slightly or choose a specialized positive-ground chipbreaker geometry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618173092012,"sku":"S20R-SSKCL09","price":21.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S20R-SSKCL09_left_hand_boring_bar_20mm_alloy_steel_shank_for_SCMT09T3_indexable_carbide_turning_inserts_anti_vibration.jpg?v=1780884120"},{"product_id":"beyond-s25s-sskcr09-boring-bar-holder","title":"BEYOND S25S-SSKCR09 Boring Bar | 25mm CNC Lathe Right Hand Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S25S-SSKCR09 Boring Bar – 25mm Right Hand Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching right-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which right-hand 25mm boring bar ensures optimum chip evacuation and rigid structural stability for everyday internal turning with SCMT 09T3 inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S25S-SSKCR09\u003c\/strong\u003e represents the definitive industrial standard for a \u003cstrong\u003eSolid Alloy Steel Right Hand Internal Turning Boring Bar\u003c\/strong\u003e, precision-developed to execute highly consistent internal profiling, boring, and face cycles on modern CNC lathes. Engineered with an optimal \u003cstrong\u003e25mm shank diameter\u003c\/strong\u003e and an extended \u003cstrong\u003e250mm overall length\u003c\/strong\u003e, this tool holder delivers an outstanding balance of structural mass and bore accessibility. It acts as a rugged barrier against harmonic micro-chatter during deep internal passes, ensuring tighter dimensional repeatability across continuous production shifts.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is meticulously pocket-milled to house standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e square indexable carbide inserts. Incorporating a 75-degree side cutting approach angle, it effectively redirects high radial push deflection into stable axial forces running straight down the longitudinal core of the 25mm alloy steel body. When paired with high-performance positive-ground chipbreaker geometries, the cutting edge splits tough workpiece fibers seamlessly. The specialized orientation of the insert pocket forces instant chip breaking, snapping continuous metal ribbons into compact, light swarf spirals that lift out smoothly from a minimum bore clearance of 32mm, protecting the machined surface from scratching or bird-nesting traps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Right-Hand (RH) Precision:\u003c\/strong\u003e Fully optimized configuration for conventional forward spindle directions and standard turret turning paths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVacuum-Hardened Alloy Steel Body:\u003c\/strong\u003e Thermal-treated matrix increases fatigue limits and yields superior dampening characteristics under variable chip thicknesses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Taper-Preventing Approach Geometry:\u003c\/strong\u003e Converts radial push back into structural compression load, maintaining extreme boring straightness over long internal bores.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Torx Screw Clamping System:\u003c\/strong\u003e Utilizes a highly flush M3.5 screw locking mechanism that completely eliminates bulky top clamps, maximizing clear chip evacuation space.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS25S-SSKCR09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e25\u003c\/strong\u003e25mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e250mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003ctd\u003e0.9842 inches (Fits perfectly within standard 1.00\" imperial split reduction sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 mm\u003c\/td\u003e\n\u003ctd\u003e9.8425 inches (Standard format optimized for versatile mid-depth boring cycles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003ctd\u003e1.2598 inches (Provides exceptional clearance for clean chip removal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size, 3.97mm Thick)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e130 - 210 m\/min (426 - 689 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.25 mm\/rev (0.0031 - 0.0098 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e75 - 140 m\/min (246 - 459 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.06 - 0.18 mm\/rev (0.0024 - 0.0071 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e90 - 170 m\/min (295 - 558 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.30 mm\/rev (0.0039 - 0.0118 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e with optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe rigid steel composition and popular 25mm right-hand geometry make the S25S-SSKCR09 a versatile asset across production fields:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Internal Cylinder Boring:\u003c\/strong\u003e Highly efficient for boring out structural sleeve components, pump blocks, and automotive wheel hubs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Step Internal Profiling:\u003c\/strong\u003e The 75° approach angle allows the tool to run continuous profiling paths, interpolating intricate internal steps with high accuracy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium-Bore Steel Adapters:\u003c\/strong\u003e Extensively deployed across general job shops for machining hydraulic manifolds, custom bushings, and pipeline fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 25mm cylindrical tool body locks firmly into industry-standard metric CNC lathe turrets, static VDI\/BMT tool block clamps, and linear gang-tool slides. For workshops operating on imperial standards, it adapts flawlessly inside standard 1.00-inch imperial split bushes. This boring bar is fully compatible with premium CNC turning center equipment, including Haas, Mazak, DN Solutions\/Doosan, Okuma, Mori Seiki, and automated multi-axis mill-turn cells.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S25S-SSKCR09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eBEYOND manufacturing centers strictly on micro-geometric tolerances. The S25S-SSKCR09 boring bar undergoes rigorous multi-axis automated milling and specialized induction heat treatments. By holding our indexable pocket seats within an ultra-precise ±0.01mm limit, we eliminate carbide micro-movement under heavy pounding. This ensures exceptional tool predictability, preventing unexpected part scrap and reducing downtime across your machining shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"The workhorse boring bar of our CNC shop\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe have three of these S25S-SSKCR09 bars running across our Haas cells. They take consistent 1.5mm depths-of-cut in 1045 steel all day without breaking a sweat. Pocket tolerance is perfect; replacement screws fit tightly every time.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Dave M., Production Supervisor (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Absolut maßhaltig und extrem vibrationsarm\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eHervorragende Qualität von BEYOND. Der 25mm Stahlschaft hat eine fantastische Dämpfung. Selbst bei Bohrungstiefen von 100mm bekommen wir eine spiegelglatte Oberfläche hin. SCMT 09T3 Platten sitzen perfekt.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Jürgen V., CNC Turner Operator (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottima stabilità, ottimo rapporto qualità-prezzo\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eVery solid alloy steel construction. We run it into standard carbon steel parts. The 75-degree approach successfully forces down radial pressure, meaning zero taper issues over deep cycles.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Pietro B., Tooling Purchaser (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"内径ボーリング加工の定番として重宝しています\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSCMT 09T3チップの収まりが非常に良く、ガタつきが全くありません。スクリューロックが低頭なので、切り屑が奥に詰まらずきれいに排出されます。加工面も非常に安定しています。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Ryu T., Machine Shop Foreman (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Superb chip clearance on blind internal steps\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe were constantly getting birds-nests with cloned bars. Swapped over to this BEYOND holder and the pocket angle combined with our SCMT chipbreaker breaks the swarf into tiny segments. Ejects perfectly with standard coolant pressure.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Liam O., Lead Aerospace Machinist (Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What specific insert models match the pocket of the S25S-SSKCR09 boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: This tool holder is exclusively designed to mount standard \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e indexable square inserts. The '09' indicates a cutting edge length of 9.525mm, and the 'T3' represents a body thickness of 3.97mm.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this 25mm tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum clear operating bore diameter (D-min) is \u003cstrong\u003e32mm (1.2598 inches)\u003c\/strong\u003e. Attempting to feed this boring bar into a diameter smaller than 32mm will cause the back relief heel of the cutting head to rub heavily against the inside walls, destroying your surface finish and chipping the insert tip.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use imperial SCMT 3(2.5)2 inserts on this metric S25S-SSKCR09 tool body?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: Yes. The metric specification '09' refers to a 9.525mm cutting edge length, which is identical to the 3\/8\" Inscribed Circle (IC) standard used in imperial \u003cstrong\u003eSCMT 3(2.5)x\u003c\/strong\u003e inserts. Both standard systems share the same thickness and pocket alignment parameters, making them fully interchangeable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In standard North American imperial machine catalogs, a 25mm metric tool body serves as a direct, high-precision alternative to a 1.00-inch (1\") imperial right-hand boring bar when utilizing generic imperial split reduction bush systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Rapid Edge Flaking \/ Chipping:\u003c\/em\u003e Ensure your center height alignment is calibrated perfectly on the spindle center. Being even 0.1mm above or below center radically alters the effective clearance angle, increasing friction and chipping the carbide tip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Chip Bird-Nesting inside Bore:\u003c\/em\u003e SCMT square inserts require positive forward feed energy to trigger the chipbreaker groove. If your chips are nesting, increase the feed rate (f) slightly or choose a specialized positive-ground chipbreaker geometry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618175189164,"sku":"S25S-SSKCR09","price":33.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S25S-SSKCR09_right_hand_boring_bar_25mm_alloy_steel_shank_for_SCMT09T3_indexable_carbide_turning_inserts_anti_vibration.jpg?v=1780883976"},{"product_id":"beyond-s25s-sskcl09-boring-bar-holder","title":"BEYOND S25S-SSKCL09 Boring Bar | 25mm CNC Lathe Left Hand Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S25S-SSKCL09 Boring Bar – 25mm Left Hand Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching left-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which left-hand 25mm boring bar provides the ultimate chip clearance and structural stability for counter-spindle deep hole turning with SCMT 09T3 inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S25S-SSKCL09\u003c\/strong\u003e is a high-grade, precision-manufactured \u003cstrong\u003eSolid Alloy Steel Left Hand Internal Turning Boring Bar\u003c\/strong\u003e engineered for sub-spindle operations, back-boring cycles, and reverse-rotation internal machining on CNC lathes. Featuring a highly versatile \u003cstrong\u003e25mm shank diameter\u003c\/strong\u003e and a \u003cstrong\u003e250mm total length\u003c\/strong\u003e, this tool holder achieves the optimal equilibrium between compact bore accessibility and rigid anti-deflection mass. It is specifically built for machine configurations requiring left-hand tool offsets, providing an absolute defense against harmonic micro-chatter during extended multi-pass internal cycles.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is meticulously milled to secure standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e indexable square carbide inserts. The integration of a 75-degree approach angle strategically converts radial tool deflection into axial forces directed straight down the 25mm alloy steel shank. When paired with high-performance coated substrates featuring molded positive-rake chipbreaker channels, the assembly effortlessly slices through resilient material grains. The specialized insert pocket orientation guarantees sudden, effective chip breaking, turning long, continuous stringy ribbons into compact, manageable swarf coils that lift out smoothly from the internal clearance zone without binding the tool or scratching critical surface finishes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialized Left-Hand (LH) Geometry:\u003c\/strong\u003e Dedicated configuration for counter-spindle setups, backward tool pathing, and unique clock-wise spindle operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInduction Hardened Alloy Steel Body:\u003c\/strong\u003e Thermal-treated steel matrix maximizes fatigue limit thresholds, delivering consistent structural dampening under heavy chip loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Side Cutting Approach Angle:\u003c\/strong\u003e Minimizes dangerous radial tool pushback, stabilizing your boring passes and ensuring excellent geometric straightness without tapering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Insert Screw Locking:\u003c\/strong\u003e Uses an ultra-secure M3.5 Torx screw system that removes the need for clumsy top clamps, maximizing the space inside the bore for smooth chip flow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS25S-SSKCL09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e25\u003c\/strong\u003e25mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e250mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003eLeft-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003ctd\u003e0.9842 inches (Commonly run within standard 1.00-inch imperial split sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 mm\u003c\/td\u003e\n\u003ctd\u003e9.8425 inches (Standard format optimized for versatile boring cycles)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003ctd\u003e1.2598 inches (Excellent clearing profile for tight internal steps)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size, 3.97mm Thick)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e130 - 210 m\/min (426 - 689 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.25 mm\/rev (0.0031 - 0.0098 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e75 - 140 m\/min (246 - 459 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.06 - 0.18 mm\/rev (0.0024 - 0.0071 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e90 - 170 m\/min (295 - 558 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.30 mm\/rev (0.0039 - 0.0118 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe compact yet highly rigid 25mm left-hand configuration makes the S25S-SSKCL09 irreplaceable in several specialized machining fields:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Sub-Spindle Internal Turning:\u003c\/strong\u003e Specifically designed to execute mirror-image profiling and front-face boring on multi-tasking mill-turn center sub-spindles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBack-Boring Internal Step Features:\u003c\/strong\u003e Perfect for pulling back towards the turret to create internal retention lips or locking rings without tool collision.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium-Bore Steel Sleeves:\u003c\/strong\u003e Extensively utilized for high-accuracy boring inside automotive gear assemblies, bearing housings, and custom adapters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 25mm cylindrical shank fits perfectly into standard metric CNC lathe turrets, VDI\/BMT static block receivers, and live-tool setups. When integrated into imperial workshops, it aligns perfectly using standard 1.00-inch imperial split reduction sleeves. It operates flawlessly across industry-leading CNC machines, including Haas, Mazak, Doosan\/DN Solutions, Okuma, Citizen, and Nakamura-Tome mill-turn centers configured for left-hand offsets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S25S-SSKCL09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eBEYOND engineering focuses heavily on micro-geometric consistency. The S25S-SSKCL09 boring bar undergoes strict multi-axis CNC milling and automated vacuum induction hardening. By keeping our insert pocket seating tolerances within a hyper-precise ±0.01mm threshold, we completely prevent micro-shifting during sudden shock loads. This ensures total predictability for your production line, significantly reducing scrap rates across extended automated runs.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Perfect fit for our dual-spindle back-boring passes\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe were struggling to find a rigid 25mm left-hand bar for a sub-spindle job on our Nakamura lathe. This BEYOND bar was a drop-in match. Held absolute size tolerances across a 1,200-part run of alloy sleeves with zero micro-chatter.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Brandon S., Turret Setup Engineer (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Hervorragende Qualität für Linkshänder-Anwendungen\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSehr präzise verarbeitet. Der Plattensitz für das SCMT 09T3 ist absolut spielfrei. Die Spanabfuhr bei Sacklochbohrungen ist dank der flachen Bauweise der Schraubenklemmung genial. Kein Spänestau mehr.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Holger W., Toolroom Supervisor (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottima barra sinistra da 25mm, molto rigida\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSolid alloy steel layout. We mount it inside a 1-inch reduction bush on our Haas ST20. The 75-degree approach successfully shifts force into the spindle axle, ensuring perfectly round internal steps.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Matteo G., Senior Programmer (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"サブスピンドルでの内径加工にビビりなし\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSCMT 09T3チップがピタリと収まります。250mmの全長でも、適切な切削条件（f=0.15mm\/rev）をかければ全くビビりません。仕上げ面粗度が大幅に向上しました。お勧めします。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Takashi Y., CNC Cell Operator (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Flawless swap with zero offset drift\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWhen changing inserts mid-shift, the pocket alignment is spot on. We don't even have to re-probe the X-axis offset. Incredible build consistency from BEYOND.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— George H., Aerospace Turning Machinist (United Kingdom)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the mechanical difference between an SSKCR and an SSKCL boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The 'R' designation stands for Right-Hand cut, whereas the 'L' in \u003cstrong\u003eS25S-SSKCL09\u003c\/strong\u003e designates a \u003cstrong\u003eLeft-Hand tool structure\u003c\/strong\u003e. Left-hand bars are structurally mirrored, designed specifically for lathes where the cutting action occurs on the opposite side of the centerline, or during specialized reverse spindle rotation or sub-spindle turning sequences.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum bore entry diameter for this 25mm tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum clear operating bore diameter (D-min) is \u003cstrong\u003e32mm (1.2598 inches)\u003c\/strong\u003e. If you attempt to program this tool inside an internal diameter smaller than 32mm, the back relief heel of the left-handed boring head will rub heavily against the inside walls, leading to instant insert breakage and part destruction.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use imperial SCMT 3(2.5)2 inserts on this metric S25S-SSKCL09 tool body?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: Yes. The metric designation '09' refers to a 9.525mm cutting edge length, which is identical to the 3\/8\" Inscribed Circle (IC) standard used in imperial \u003cstrong\u003eSCMT 3(2.5)x\u003c\/strong\u003e inserts. Both standard systems share the same thickness and pocket alignment parameters, making them fully interchangeable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In standard North American imperial machine catalogs, a 25mm metric tool body serves as a direct, high-precision alternative to a 1.00-inch (1\") imperial left-hand boring bar when utilizing generic imperial split reduction bush systems.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Rapid Edge Flaking \/ Chipping:\u003c\/em\u003e Ensure your center height alignment is calibrated perfectly on the spindle center. For left-hand setups, being even 0.1mm above or below center radically alters the effective clearance angle, increasing friction and chipping the carbide tip.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Chip Bird-Nesting inside Bore:\u003c\/em\u003e SCMT square inserts require positive forward feed energy to trigger the chipbreaker groove. If your chips are nesting, increase the feed rate (f) slightly or choose a specialized positive-ground chipbreaker geometry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618176073900,"sku":"S25S-SSKCL09","price":33.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S25S-SSKCL09_left_hand_boring_bar_25mm_alloy_steel_shank_for_SCMT09T3_indexable_carbide_turning_inserts_anti_vibration.jpg?v=1780883668"},{"product_id":"beyond-s25s-sskcr12-boring-bar-holder","title":"BEYOND S25S-SSKCR12 Heavy Duty Boring Bar | 25mm CNC Lathe Internal Turning Tool Holder for SCMT 1204 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S25S-SSKCR12 Boring Bar – 25mm Heavy Duty Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching right-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which 25mm boring bar is best optimized for high metal removal rates and maximized chip thickness capability by utilizing larger 12mm square SCMT inserts within confined bores?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S25S-SSKCR12\u003c\/strong\u003e is an industrial-grade \u003cstrong\u003eSolid Alloy Steel Right Hand Internal Turning Boring Bar\u003c\/strong\u003e engineered to deliver extreme cutting edge security within a versatile \u003cstrong\u003e25mm shank footprint\u003c\/strong\u003e. Featuring a \u003cstrong\u003e250mm total length\u003c\/strong\u003e, this specialized tool holder bridges the gap between mid-sized machine setups and heavy-duty roughing capacities. Unlike traditional 25mm boring bars that are restricted to thin 09-sized inserts, the S25S-SSKCR12 is meticulously pocket-milled to accept much larger and thicker \u003cstrong\u003eSCMT 1204 \/ SCGT 1204\u003c\/strong\u003e indexable square carbide inserts. This allows machinsts to run aggressive depths-of-cut (Ap) and high feed loads without risking sudden insert fractures.\u003c\/p\u003e\n\u003cp\u003eThe engineering breakthrough of this model centers on its unique pocket configuration. The SCMT 1204 insert features a rugged 4.76mm substrate thickness—a substantial upgrade over the 3.97mm thickness of 09T3 inserts. This added thickness absorbs massive thermal shocks and mechanical stresses during continuous roughing in tough alloy steels. Combined with a 75-degree approach lead angle, radial cutting forces are redirected axially back along the rigid 25mm steel shank, eliminating micro-deflection. When paired with positive-rake ground chipbreaker grooves, the setup ensures instantaneous chip breaking, turning hazardous long steel ribbons into tight, broken coils that eject smoothly from a minimum bore diameter of 32mm.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Capacity SCMT 1204 Pocket:\u003c\/strong\u003e Pocket-engineered for thick 12mm edge length square inserts, granting unmatched cutting edge mass to handle severe scale and interrupted cuts easily.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInduction-Hardened Alloy Steel Shank:\u003c\/strong\u003e Quenched and tempered to optimal tensile thresholds to dampen structural vibrations during high-frequency deep-cavity turning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Optimized Cutting Lead Angle:\u003c\/strong\u003e Converts push deflection into stable axial clamping load, maintaining strict dimensional linearity and preventing taper errors in internal steps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Torx Screw Clamping:\u003c\/strong\u003e Utilizes strong M4.0 screw locking to maximize clear chip evacuation space inside tight cylinders, completely eliminating top-clamp chip nesting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS25S-SSKCR12\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e25\u003c\/strong\u003e25mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e250mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e12\u003c\/strong\u003e12mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003ctd\u003e0.9842 inches (Fits perfectly inside standard 1.00\" imperial split boring sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 mm\u003c\/td\u003e\n\u003ctd\u003e9.8425 inches (Highly versatile mid-to-long length format)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003ctd\u003e1.2598 inches (Optimized clear entry for a 25mm bar running 12mm inserts)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 1204xx \/ SCGT 1204xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 431 \/ SCMT 432 \/ SCMT 433 (1\/2\" IC Square Size, 4.76mm Thick)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM4.0 x 10.0\u003c\/td\u003e\n\u003ctd\u003eM4.0 x 0.3937 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e120 - 200 m\/min (393 - 656 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.12 - 0.35 mm\/rev (0.0047 - 0.0137 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e70 - 140 m\/min (229 - 459 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.22 mm\/rev (0.0031 - 0.0086 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e90 - 160 m\/min (295 - 524 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.15 - 0.38 mm\/rev (0.0059 - 0.0150 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts?\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e \u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 1204 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe high-strength 12mm insert pocket combined with a nimble 25mm tool shank makes the S25S-SSKCR12 perfect for a wide range of internal operations:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfined Mid-Size Rough Boring:\u003c\/strong\u003e Ideal for machining internal diameters starting above 32mm where a thicker, more rigid insert is required to break through hardened crusts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Metal Removal Rate (MRR) Turning:\u003c\/strong\u003e Tailor-made for deep forward-spindle turning sequences where aggressive cutting depths must coexist with restricted clearances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupted Deep-Hole Cycles:\u003c\/strong\u003e Widely used for machining cross-drilled cylinders or internal keyways where heavy structural pounding normally fractures standard 09-sized carbide edges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 25mm cylindrical tool body locks firmly into industry-standard metric CNC lathe turrets, static VDI\/BMT tool block clamps, and linear gang-tool slides. For workshops operating on imperial standards, it adapts flawlessly inside standard 1.00-inch imperial split bushes. This boring bar is fully compatible with premium CNC turning center equipment, including Haas, Mazak, DN Solutions\/Doosan, Okuma, Mori Seiki, and automated multi-axis mill-turn cells.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S25S-SSKCR12 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eBEYOND manufacturing centers strictly on micro-geometric tolerances. The S25S-SSKCR12 boring bar undergoes rigorous multi-axis automated milling and specialized induction heat treatments. By holding our indexable pocket seats within an ultra-precise ±0.01mm limit, we eliminate carbide micro-movement under heavy pounding. This ensures exceptional tool predictability, preventing unexpected part scrap and reducing downtime across your machining shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Incredible solution for high-load roughing in 35mm bores\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe needed to rough out tough 4140 steel tubes. Normal 25mm bars with 09 inserts kept chipping because of the heavy chip load. This BEYOND bar with SCMT 1204 inserts completely solved our problem. The extra insert thickness lets us push 2.5mm depths-of-cut with absolute confidence.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Marcus T., Lead CNC Lathe Operator (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Hervorragende Steifigkeit und perfekte Plattensitzgenauigkeit\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSehr klug konzipiert. Die Kombination aus einem 25mm Schaft und einer großen 12er Platte gibt enorme Stabilität beim Schruppen. Die M4 Schraube hält die Wendeplatte bombenfest. Keine Vibrationen im Sackloch.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Dieter K., Production Engineer (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo stelo pesante, ideale per lavorazioni gravose\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSolid steel shank layout. We run it inside a 1-inch split sleeve on our Haas lathe. It redirects forces axially so well that we noticed an immediate improvement in bore roundness across our production runs.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Stefano M., Workshop Manager (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"25mmシャンクで12サイズチップが使えるのが素晴らしい\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e鋳鉄製スリーブの内径荒加工に使用。09サイズのツールホルダーと比べて、ビビりの無さと刃先強度が明らかに違います。断続切削でもチップが欠けず、安心して送り速度を上げられます。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Kenji S., CNC Cell Supervisor (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"No more chip traps in deep blind bores\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe screw locking design leaves the chip pocket entirely open. Running high-pressure coolant washes the heavy broken chips right out of the 40mm bore. Fantastic design by BEYOND.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Oliver P., Turner Specialist (Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Why choose an S25S-SSKCR12 boring bar over an S25S-SSKCR09 model?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: While both tool holders share a identical 25mm shank diameter, the \u003cstrong\u003eS25S-SSKCR12\u003c\/strong\u003e is custom-engineered to hold the larger \u003cstrong\u003eSCMT 1204 inserts\u003c\/strong\u003e. The 1204 inserts are significantly thicker (4.76mm vs 3.97mm for 09T3) and offer longer cutting edges, making this bar far superior for heavy-duty roughing, higher depth-of-cut limits, and high-impact material removal rates.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this tool body?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum operating bore diameter (D-min) is \u003cstrong\u003e32mm (1.2598 inches)\u003c\/strong\u003e. Running this tool holder inside a hole smaller than 32mm will cause the back relief heel of the right-handed head structure to rub against the internal walls of your component, ruining the surface finish and fracturing the insert.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use imperial SCMT 432 inserts on this metric S25S-SSKCR12 tool body?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: Yes. The metric specification '12' refers to a 12.7mm cutting edge length, which is functionally identical to the 1\/2\" Inscribed Circle (IC) sizing format used for imperial \u003cstrong\u003eSCMT 43x\u003c\/strong\u003e inserts. Both naming systems share identical thickness and pocket mounting metrics, making them fully interchangeable.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e While 25mm is a standard metric layout used widely across European and Asian production hubs, it serves as a direct, high-precision drop-in alternative to traditional 1.00-inch (1\") imperial boring bars in North American workshops when held within standard multi-size reduction sleeve blocks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - High-Frequency Chatter \/ Poor Surface Finish:\u003c\/em\u003e Check that your tool nose center line matches the spindle centerline perfectly. For 25mm heavy configurations running large inserts, being even 0.15mm off-center radically changes the effective clearance angle. Also, make sure at least 3xD to 4xD length of the steel shank is clamped firmly in a high-accuracy split boring sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Long Stringy Chips \/ Workpiece Bird-Nesting:\u003c\/em\u003e Square SCMT 1204 inserts require sufficient feed pressure to activate their chipbreaker groove. If your material is stringing, increase the feed rate (f) slightly or choose a sharper, highly positive-ground chipbreaker configuration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618183479468,"sku":"S25S-SSKCR12","price":33.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S25S-SSKCR12_right_hand_heavy_duty_boring_bar_25mm_alloy_steel_shank_for_SCMT120408_indexable_carbide_turning_inserts_heavy_metal_removal.jpg?v=1780883804"},{"product_id":"beyond-s32t-sskcr12-boring-bar-holder","title":"BEYOND S32T-SSKCR12 Heavy Duty Boring Bar | 32mm CNC Lathe Internal Turning Tool Holder for SCMT 1204 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S32T-SSKCR12 Boring Bar – 32mm Heavy Duty Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching right-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which heavy-duty 32mm boring bar is best optimized for high metal removal rates (MRR) and large depth-of-cut internal roughing while using large SCMT 1204 square inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S32T-SSKCR12\u003c\/strong\u003e is an industrial-grade, ultra-robust \u003cstrong\u003eSolid Alloy Steel Right Hand Internal Turning Boring Bar\u003c\/strong\u003e engineered specifically for heavy roughing and deep-hole profiling on medium-to-large CNC lathes. Featuring a massive \u003cstrong\u003e32mm shank diameter\u003c\/strong\u003e and a \u003cstrong\u003e300mm total tool length\u003c\/strong\u003e, this tool holder provides an extreme level of structural stiffness against severe bending deflection and torsional vibration. It is custom-milled to accept the larger \u003cstrong\u003eSCMT 1204 \/ SCGT 1204\u003c\/strong\u003e indexable square carbide inserts, making it a true heavy-duty workhorse compared to smaller models that utilize thin 09-sized inserts.\u003c\/p\u003e\n\u003cp\u003eThe core advantage of the S32T-SSKCR12 lies in its capability to handle severe mechanical loads during continuous deep-hole cuts. The SCMT 1204 inserts feature an increased substrate thickness of 4.76mm, allowing for significantly larger depth-of-cut (Ap) limits. Combined with a 75-degree strategic approach angle, radial cutting forces are redirected axially straight back into the massive 32mm steel shank, preventing the common micro-chatter that leads to insert chipping. The open-pocket head layout combined with advanced ground positive-rake chipbreaker geometries facilitates instantaneous chip breaking, converting stubborn steel ribbons into short, highly manageable coils that evacuate effortlessly without nesting inside large bores.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty SCMT 1204 Interface:\u003c\/strong\u003e Specially pocket-milled for large 12mm edge length square inserts, enabling high-feed roughing and handling extreme chip loads with ease.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Hardened Alloy Steel Shank:\u003c\/strong\u003e Quenched and tempered via advanced induction thermal treatments to increase structural strength and absorb high-frequency chatter during long overhang setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Optimized Side Cutting Lead Angle:\u003c\/strong\u003e Transfers high radial push forces into stable axial clamping forces, keeping internal tool paths linear and preventing taper errors in deep cylinders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Screw Clamping Mechanism:\u003c\/strong\u003e Employs high-tensile M4.0 Torx screws to lock the insert securely into place without bulky top clamps, ensuring an entirely unobstructed path for rapid chip evacuation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS32T-SSKCR12\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e32\u003c\/strong\u003e32mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eT\u003c\/strong\u003e300mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e12\u003c\/strong\u003e12mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003ctd\u003e1.2598 inches (Fits standard 1-1\/4\" heavy-duty imperial boring sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 mm\u003c\/td\u003e\n\u003ctd\u003e11.8110 inches (Extended format optimized for deep-hole machining)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 mm\u003c\/td\u003e\n\u003ctd\u003e1.5748 inches (Excellent for heavy-duty internal cavities)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 1204xx \/ SCGT 1204xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 431 \/ SCMT 432 \/ SCMT 433 (1\/2\" IC Square Size, 4.76mm Thick)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM4.0 x 10.0\u003c\/td\u003e\n\u003ctd\u003eM4.0 x 0.3937 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e120 - 200 m\/min (393 - 656 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.12 - 0.38 mm\/rev (0.0047 - 0.0150 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e70 - 140 m\/min (229 - 459 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.25 mm\/rev (0.0031 - 0.0098 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e90 - 160 m\/min (295 - 524 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.15 - 0.40 mm\/rev (0.0059 - 0.0157 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts?\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT1204\" target=\"_blank\" rel=\"noopener\"\u003e \u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 1204 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe heavy-duty 32mm tool diameter paired with large 12mm inserts makes the S32T-SSKCR12 highly effective for aggressive metal removal:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy Industrial Internal Boring:\u003c\/strong\u003e Perfect for deep forward-spindle internal roughing passes in forged steel components, heavy gear blanks, and massive pipe flanges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Metal-Removal-Rate (MRR) Roughing:\u003c\/strong\u003e Engineered to withstand aggressive chip depths (up to 3-4mm per pass axially) without suffering tool deflection or dimensional drift.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Cylinder Boring:\u003c\/strong\u003e Widely applied across hydraulic cylinder rebuilds, mining machinery components, and maritime driveshafts where structural stability is critical.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 32mm cylindrical shank fits perfectly into standard metric CNC lathe turrets, heavy static VDI\/BMT tool blocks, and large split-sleeve tool blocks. When loaded into imperial CNC systems, it easily aligns via standard 1-1\/4 inch multi-size reduction bushes. It works seamlessly across premium CNC equipment brands including Haas, Mazak, DN Solutions\/Doosan, Okuma, Mori Seiki, and specialized heavy-duty turning centers configured for demanding metal removal cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S32T-SSKCR12 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eAt BEYOND, structural integrity is our baseline. The S32T-SSKCR12 undergoes rigorous multi-axis automated induction hardening and automated pocket milling. By locking insert seat tolerances down within a strict ±0.01mm limit, we eliminate micro-movements under heavy impact. This gives your shop predictable tool performance, reducing unexpected downtime across large-scale manufacturing shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"An absolute beast for heavy roughing in deep bores\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe were rough boring large 8620 forged steel rings. The old bar using 09-sized inserts kept chipping because the insert thickness couldn't handle the 3.5mm depth of cut. Upgraded to this BEYOND 32mm bar with SCMT 1204 inserts, and it eats through the metal effortlessly. No vibration, pure performance.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Dave M., Machine Shop Lead (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Massive Stabilität und hervorragende Spanabfuhr\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eDie Kombination aus 32mm Schaft und den großen SCMT 1204 Wendeplatten ist ideal für unsere schweren Schruppbearbeitungen. Der Plattensitz ist perfekt verarbeitet, extrem wiederholgenau beim Plattenwechsel. Sehr zu empfehlen für tiefe Bohrungen unter hoher Last.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Klaus B., CNC Production Manager (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo stelo pesante, ideale per asportazioni gravose\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eVery strong steel shank. Paired it with BEYOND CVD coated inserts and the tool life increased by 35% compared to our previous setup. Holds tolerances within 0.02mm on 250mm deep bores.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Pietro V., Senior CNC Machinist (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"12mmチップの強度と剛性に大満足です\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e大型の鋳鉄製ハウジング内径加工に導入。09サイズのツールホルダーとは剛性が次元違いです。激しい断続切削でもビビりが完全に抑えられ、SCMT 1204チップの性能を限界まで引き出せます。素晴らしいコストパフォーマンス。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Satoshi H., Manufacturing Lead (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"No chip bird-nesting on deep profiles\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe low-profile screw locking mechanism leaves the chip pocket wide open. When running high flood lines, heavy broken chips clear out of the 50mm bore without ever jamming.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Liam R., Industrial Turning Specialist (Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What makes the S32T-SSKCR12 different from an S32T-SSKCR09 boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: While both bars share a 32mm shank diameter, the \u003cstrong\u003eS32T-SSKCR12\u003c\/strong\u003e is specifically engineered for larger \u003cstrong\u003eSCMT 1204 inserts\u003c\/strong\u003e instead of SCMT 09T3. The 1204 inserts provide a thicker carbide substrate (4.76mm vs 3.97mm) and a longer cutting edge, making this bar significantly better suited for heavy roughing, large depth of cut (Ap), and high-load material removal.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this heavy-duty bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum operating bore diameter (D-min) is \u003cstrong\u003e40mm (1.5748 inches)\u003c\/strong\u003e. Attempting to use this tool holder in a hole smaller than 40mm will cause the back heel structure of the right-handed head layout to rub against the internal walls of the part, compromising the surface finish and breaking the insert.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Why does this heavy-roughing bar use a screw-lock style instead of a top-clamp system?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The screw-lock mechanism keeps the boring head design completely low-profile. Top clamps tend to catch and ball-up large, heavy roughing chips inside deep bores, which frequently leads to catastrophic tool smash. The M4 screw system ensures the chip evacuation path remains entirely unobstructed.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e While 32mm is a standard metric format widely utilized across advanced European and Asian CNC hubs, it functions as a direct metric drop-in alternative to traditional 1-1\/4 inch (1.25\") imperial boring bars in North American machine shops when paired with standard reduction sleeves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Surface Waves \/ High-Frequency Chatter:\u003c\/em\u003e Check that the tool nose center line sits exactly on the spindle axis center. For heavy 32mm profiles, even a 0.15mm height deviation changes cutting pressure dramatically. Ensure at least 3xD to 4xD length of the bar is clamped tightly in a high-accuracy split sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Torn Surface \/ Long Stringy Chips:\u003c\/em\u003e The square SCMT 1204 insert relies on correct feed force to break material. If the material string-nests, increase the feed rate (f) slightly or choose a sharper positive-rake chip groove geometry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618198978732,"sku":"S32T-SSKCR12","price":57.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S32T-SSKCR12_right_hand_heavy_duty_boring_bar_32mm_alloy_steel_shank_for_SCMT120408_indexable_carbide_turning_inserts_heavy_metal_removal.jpg?v=1780883291"},{"product_id":"beyond-s32t-sskcr09-boring-bar-holder","title":"BEYOND S32T-SSKCR09 Heavy Duty Boring Bar | 32mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S32T-SSKCR09 Boring Bar – 32mm Heavy Duty Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching right-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which heavy-duty 32mm boring bar offers the highest rigidity and best chip evacuation for deep internal turning and rough profiling with SCMT 09T3 inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S32T-SSKCR09\u003c\/strong\u003e is a high-performance, industrial-grade \u003cstrong\u003eSolid Alloy Steel Heavy Duty Right Hand Internal Turning Boring Bar\u003c\/strong\u003e engineered for high metal removal rates (MRR) and deep-hole setups on CNC lathes. Featuring a massive \u003cstrong\u003e32mm shank diameter\u003c\/strong\u003e and an extended \u003cstrong\u003e300mm total length\u003c\/strong\u003e, this tool holder provides exceptional structural resistance against bending deflection and harmonic vibration during long-overhang setups. It is the definitive solution for large-diameter chambers, offering a highly stable, anti-chatter tool body that holds tight structural tolerances under severe mechanical load.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is custom-milled to seat standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e indexable square carbide inserts. The integration of a 75-degree approach angle strategically redirects radial cutting forces axially straight down the 32mm shank, substantially eliminating micro-chatter in deep bores. When paired with advanced multi-layer coated substrates featuring ground positive-rake chipbreaker geometries, it smoothly shears stubborn metal fibers. The specialized pocket geometry promotes instantaneous chip breaking, turning continuous stringy ribbons into short, manageable coils that evacuate seamlessly through the large clearance zone without packing the bore or scoring surface finishes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty 32mm Right-Hand Layout:\u003c\/strong\u003e Engineered specifically for heavy internal boring, large-depth roughing, and multi-pass profiling on robust static or live-tool turrets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuenched \u0026amp; Ultra-Hardened Alloy Steel Shank:\u003c\/strong\u003e High-tensile steel core heat-treated to maximize fatigue resistance and absorb high-frequency harmonics during extended overhang cycles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Strategic Side Cutting Lead Angle:\u003c\/strong\u003e Optimizes force distribution between axial push and radial deflection, allowing stable square-shoulder tracking and high feed rates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Screw Clamping Mechanism:\u003c\/strong\u003e Uses a high-tensile M3.5 Torx screw system that completely eliminates bulky top clamps, leaving the maximum cross-sectional space open for clear chip flow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS32T-SSKCR09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e32\u003c\/strong\u003e32mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eT\u003c\/strong\u003e300mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eK\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003ctd\u003e1.2598 inches (Highly rigid 1-1\/4\" heavy-duty standard class)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 mm\u003c\/td\u003e\n\u003ctd\u003e11.8110 inches (Extended format optimized for deep-hole machining)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 mm\u003c\/td\u003e\n\u003ctd\u003e1.5748 inches (Excellent for heavy-duty internal cavities)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e140 - 220 m\/min (459 - 721 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.28 mm\/rev (0.0031 - 0.0110 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e80 - 150 m\/min (262 - 492 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.06 - 0.20 mm\/rev (0.0024 - 0.0078 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e100 - 180 m\/min (328 - 590 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.32 mm\/rev (0.0039 - 0.0126 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts?\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e \u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe robust 32mm tool diameter makes the S32T-SSKCR09 highly effective for precise internal profiles across complex manufacturing setups:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy Duty Internal Step Boring:\u003c\/strong\u003e Ideal for machining large internal step-bores, heavy inner lips, and precise relief tracks inside large industrial housings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep Hole Rough \u0026amp; Finish Profiling:\u003c\/strong\u003e Perfect for completing deep forward-spindle internal tracks without risking chatter patterns or dimensional tapering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLarge Machined Sleeves \u0026amp; Cylinders:\u003c\/strong\u003e Widely applied in oil \u0026amp; gas equipment, hydraulic cylinders, and heavy automotive hubs where rigidity is critical.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 32mm cylindrical shank fits perfectly into standard metric CNC lathe turrets, heavy static VDI\/BMT blocks, and large split-sleeve tool blocks. When loaded into imperial CNC configurations, it easily aligns via standard 1-1\/4 inch multi-size reduction bushes. It works seamlessly across premium CNC equipment brands including Haas, Mazak, DN Solutions\/Doosan, Okuma, and specialized heavy-duty turning centers configured for demanding metal removal cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S32T-SSKCR09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eAt BEYOND, structural integrity is our baseline. The S32T-SSKCR09 undergoes rigorous multi-axis automated induction hardening and automated pocket milling. By locking insert seat tolerances down within a strict ±0.01mm limit, we eliminate micro-movements under heavy impact. This gives your shop predictable tool performance, reducing unexpected downtime across large-scale manufacturing shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Massive rigidity, completely eliminated my deep bore chatter\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe were running a deep internal profiling job on 4140 steel sleeves at 220mm depth. The old 25mm bar we used would squeal like crazy. Swapped to this BEYOND 32mm bar and it completely silenced the harmonic vibration. Surface finish is mirror-like now.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Marcus T., Senior Manufacturing Engineer (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Absolut erstklassige Stabilität bei tiefen Bohrungen\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eDie 32mm Ausführung hält extremen Belastungen stand. Der Plattensitz ist perfekt geschliffen, SCMT 09T3 Platten sitzen bombenfest. Der flache Schraubenkopf behindert den Späneabfluss überhaupt nicht. Sehr gutes Industrieprodukt.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Dieter K., CNC Workshop Supervisor (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottima barra pesante per fori profondi\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eVery heavy, solid steel bar. Using it on a Mazak lathe for heavy roughing passes. Redirection of forces via the 75-degree angle works as described. Holds 0.015mm tolerances easily across 500 parts.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Giovanni F., Lead Lathe Programmer (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"32mmシャンクの剛性は圧倒的です\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e高硬度材の油圧シリンダー内径加工（D-min 40mm超）に導入。300mmの全長をフルに使ってもビビりが一切なく、SCMTチップが最高のパフォーマンスを発揮します。価格以上の価値があります。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Kenji S., Production Lead (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Flawless chip clearance on heavy roughing\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe screw clamping gives perfect open clearance. When combined with through-coolant or steady flood lines, chips lift right out of the 45mm entry holes without binding.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Alistair K., Small Parts Turning Specialist (Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the benefit of a 32mm tool body over a 20mm or 25mm boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: A 32mm shank provides more than \u003cstrong\u003edouble the torsional and bending stiffness\u003c\/strong\u003e of a 25mm bar. This extra mass is vital for high metal removal rates and preventing elastic deflection during long overhangs up to 200-240mm deep.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this S32T tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum safe operating bore diameter (D-min) is \u003cstrong\u003e40mm (1.5748 inches)\u003c\/strong\u003e. Running this tool inside any bore smaller than 40mm will cause the back heel structure of the right-handed tool head to rub against the internal wall, ruining the part and chipping the insert.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Why does this heavy-duty bar use a screw lock instead of a top clamp system?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The screw-lock system for the SCMT 09T3 insert keeps the cutter head extremely low-profile. Bulky top clamps tend to catch and bird-nest long metal chips inside deep bores, which can smash the insert. The screw lock leaves the chip evacuation path fully unrestricted.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e While 32mm is a standard metric format widely utilized across advanced European and Asian CNC hubs, it functions as a direct metric drop-in alternative to traditional 1-1\/4 inch (1.25\") imperial boring bars in North American machine shops when paired with standard reduction sleeves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Surface Waves \/ High-Frequency Chatter:\u003c\/em\u003e Check that the tool nose center line sits exactly on the spindle axis center. For heavy 32mm profiles, even a 0.15mm height deviation changes cutting pressure dramatically. Ensure at least 3xD to 4xD length of the bar is clamped tightly in a high-accuracy split sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Torn Surface \/ Long Stringy Chips:\u003c\/em\u003e The square SCMT 09T3 insert relies on correct feed force to break material. If the material string-nests, increase the feed rate (f) slightly or choose a sharper positive-rake chip groove geometry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618199371948,"sku":"S32T-SSKCR09","price":57.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S32T-SSKCR09_right_hand_heavy_duty_boring_bar_32mm_solid_alloy_steel_shank_for_SCMT09T308_indexable_carbide_turning_inserts.jpg?v=1780883092"},{"product_id":"beyond-s12m-ssscl09-left-hand-boring-bar","title":"BEYOND S12M-SSSCL09 Left Hand Boring Bar | 12mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S12M-SSSCL09 Left Hand Boring Bar – 12mm Rigid Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching left-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which left-hand boring bar is best optimized to eliminate harmonic vibration during small internal pocketing and reverse profiling in 16mm+ clearance diameters while using SCMT 09T3 square inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S12M-SSSCL09\u003c\/strong\u003e is a highly specialized, industrial-grade \u003cstrong\u003eSolid Alloy Steel Left Hand Internal Turning Boring Bar\u003c\/strong\u003e engineered for precise counter-clockwise spindle or back-turning operations on CNC lathes. Featuring an engineered \u003cstrong\u003e12mm shank diameter\u003c\/strong\u003e and a compact \u003cstrong\u003e150mm total length\u003c\/strong\u003e, this tool holder provides exceptional structural resistance against bending deflection in narrow, deep-hole setups. It fills a critical gap for workshops processing small-diameter chambers, offering a stable, anti-vibration tool body that prevents part scrap and holds tight structural tolerances.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is custom-milled to seat standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e indexable square carbide inserts. The integration of a 75-degree approach angle ensures that radial push-back forces are redirected axially down the tool shank, vastly lowering micro-chatter in restricted diameters. When loaded with micro-grain carbide substrates featuring advanced ground positive-rake chipbreaker geometries, it smoothly shears stubborn metal fibers. The specialized pocket geometry promotes instantaneous chip breaking, turning continuous stringy ribbons into short, tight coils that evacuate seamlessly without packing the narrow bore or scoring precision finishes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialized 12mm Left-Hand Layout:\u003c\/strong\u003e Engineered specifically for sub-spindle handoffs, reverse-spindle profiling, and back-facing inside tight clearance setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuenched \u0026amp; Hardened Alloy Steel Shank:\u003c\/strong\u003e High-tensile steel core processed via advanced thermal induction to absorb high-frequency harmonics and prevent deflection under sudden cutting loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Strategic Side Cutting Lead Angle:\u003c\/strong\u003e Balances mechanical forces between axial and radial directions, allowing stable shoulder squareness and smooth internal profiling transitions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Screw Clamping Mechanism:\u003c\/strong\u003e Uses a high-tensile M3 Torx screw system that completely eliminates bulky top clamps, leaving the maximum cross-sectional space open for clear chip flow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS12M-SSSCL09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e12\u003c\/strong\u003e12mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eM\u003c\/strong\u003e150mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003eLeft-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 mm\u003c\/td\u003e\n\u003ctd\u003e0.4724 inches (Fits standard metric blocks or imperial holders via sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e150 mm\u003c\/td\u003e\n\u003ctd\u003e5.9055 inches (Compact format optimized for rigidity in shallow holes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003ctd\u003e0.6299 inches (Excellent for tight, micro-internal cavities)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.0 x 7.0 \/ 8.0\u003c\/td\u003e\n\u003ctd\u003eM3.0 x 0.2756 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT9 \/ T10\u003c\/td\u003e\n\u003ctd\u003eT9 \/ T10 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e100 - 180 m\/min (328 - 590 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.05 - 0.20 mm\/rev (0.0020 - 0.0078 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e60 - 120 m\/min (196 - 393 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.04 - 0.15 mm\/rev (0.0015 - 0.0059 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e80 - 140 m\/min (262 - 459 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.06 - 0.22 mm\/rev (0.0024 - 0.0086 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe highly compact 12mm tool diameter makes the S12M-SSSCL09 highly effective for precise internal profiles across complex manufacturing setups:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Internal Step Turning:\u003c\/strong\u003e Ideal for machining small step-bores, inner lips, and precise relief tracks inside miniature valve sleeves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-Spindle Back Boring:\u003c\/strong\u003e Perfect for completing reverse-spindle internal tracks on multi-axis turning centers to avoid manual part flipping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall Machined Bushings \u0026amp; Hubs:\u003c\/strong\u003e Widely applied in medical devices, automotive sensors, and pneumatic component lines where the inner diameter sits strictly between 16mm and 22mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 12mm cylindrical shank fits perfectly into standard metric CNC lathe turrets, static VDI blocks, and precise split-sleeve tool blocks. When loaded into larger metric or imperial CNC configurations, it easily aligns via standard multi-size reduction bushes. It works seamlessly across premium CNC equipment brands including Haas, Mazak, DN Solutions\/Doosan, Citizen, Star, and specialized live-tooling lathes configured for precise reverse-spindle machining cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S12M-SSSCL09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eAt BEYOND, structural integrity is our baseline. The S12M-SSSCL09 undergoes rigorous multi-axis automated induction hardening and automated pocket milling. By locking insert seat tolerances down within a strict ±0.01mm limit, we eliminate micro-movements under heavy impact. This gives your shop predictable tool performance, reducing unexpected downtime across large-scale manufacturing shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"12mm bar is a savior for narrow micro-boring jobs\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eHard to find high-quality 12mm boring bars, especially left-handed. BEYOND nailed this tool. The steel is exceptionally stiff for its size, and clamping SCMT 09T3 inserts is dead-accurate. Vibration completely disappeared on my carbon steel tubes.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Harrison D., Precision Lathe Programmer (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Hervorragende Bohrungsqualität ohne Vibration\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eDie 12mm-Ausführung ist perfekt für unsere engen Bauteile. Sehr robuster Plattensitz. Guter Späneabfluss, da der Schraubkopf extrem flach gehalten ist. Absolut empfehlenswert für CNC-Drehmaschinen.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Jürgen W., Machinist Team Lead (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Stelo d'acciaio molto rigido da 12mm\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eGreat bar for tight counter-boring. Used on a sub-spindle setup and the dimensions are holding rock steady within 0.01mm across long batches. Fast shipping to Europe.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Matteo G., CNC Turning Operator (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"12mmの左勝手工具として最高品質です\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e内径16mm超の狭いボス加工に導入しました。鋼シャンクですが150mmと絶妙な長さで、チャタリングが全く発生しません。SCMTチップのクランプが極めて安定しています。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Takashi N., Manufacturing Engineer (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"No chip nesting in blind cylinders\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe screw clamping gives perfect open clearance. When combined with steady flood lines, chips lift right out of the 17mm entry holes without binding.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Alistair K., Small Parts Turning Specialist (Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the benefit of a 12mm tool body over a standard 10mm or 14mm bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: A 12mm bar provides significantly more \u003cstrong\u003estructural rigidity\u003c\/strong\u003e than a 10mm bar, while allowing access to narrow internal spaces that a 14mm or 16mm bar cannot physically enter. It is the perfect standard for deep internal tracks with an opening between 16mm and 20mm.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this S12M tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum safe operating bore diameter (D-min) is \u003cstrong\u003e16mm (0.6299 inches)\u003c\/strong\u003e. Running this tool inside any bore smaller than 16mm will cause the back heel structure of the left-handed tool head to rub against the internal wall, ruining the part and chipping the insert.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Does this boring bar come with through-coolant holes?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The S12M-SSSCL09 is a solid high-tensile alloy steel shank bar. For high-pressure deep blind bores, we recommend directing external flood nozzles straight into the left-hand cutting zone to ensure continuous, fast chip evacuation out of the open hole.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e While 12mm is a standard metric format widely utilized across advanced European and Asian CNC hubs, it functions as a direct metric drop-in alternative to traditional 1\/2-inch (12.7mm) imperial boring bars in North American machine shops when paired with reduction split sleeves.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Surface Waves \/ High-Frequency Chatter:\u003c\/em\u003e Check that the tool nose center line sits exactly on the spindle axis center. For narrow 12mm profiles, even a 0.1mm height deviation changes cutting pressure dramatically. Ensure at least 3xD to 4xD length of the bar is clamped tightly in a high-accuracy split sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Torn Surface \/ Long Stringy Chips:\u003c\/em\u003e The square SCMT 09T3 insert relies on correct feed force to break material. If the material string-nests, increase the feed rate (f) slightly or choose a sharper positive-rake chip groove geometry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618201993388,"sku":"S12M-SSSCL09","price":16.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S12M-SSSCL09_left_hand_internal_turning_boring_bar_12mm_solid_steel_shank_for_SCMT09T304_indexable_carbide_inserts_CNC_lathe_machining.jpg?v=1780882948"},{"product_id":"beyond-s14n-ssscr09-boring-bar-holder","title":"BEYOND S14N-SSSCR09 Right Hand Boring Bar | 14mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S14N-SSSCR09 Boring Bar – 14mm Rigid Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching right-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which right-hand boring bar is best optimized to eliminate harmonic vibration during small internal pocketing and forward profiling in 19mm+ clearance diameters while using SCMT 09T3 square inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S14N-SSSCR09\u003c\/strong\u003e is a highly specialized, industrial-grade \u003cstrong\u003eSolid Alloy Steel Right Hand Internal Turning Boring Bar\u003c\/strong\u003e engineered for precise clockwise spindle operations on CNC lathes. Featuring an engineered \u003cstrong\u003e14mm shank diameter\u003c\/strong\u003e and a compact \u003cstrong\u003e160mm total length\u003c\/strong\u003e, this tool holder provides exceptional structural resistance against bending deflection in narrow, deep-hole setups. It fills a critical gap for workshops processing small-diameter chambers, offering a stable, anti-vibration tool body that prevents part scrap and holds tight structural tolerances.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is custom-milled to seat standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e indexable square carbide inserts. The integration of a 75-degree approach angle ensures that radial push-back forces are redirected axially down the tool shank, vastly lowering micro-chatter in restricted diameters. When loaded with micro-grain carbide substrates featuring advanced ground positive-rake chipbreaker geometries, it smoothly shears stubborn metal fibers. The specialized pocket geometry promotes instantaneous chip breaking, turning continuous stringy ribbons into short, tight coils that evacuate seamlessly without packing the narrow bore or scoring precision finishes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialized 14mm Right-Hand Layout:\u003c\/strong\u003e Engineered specifically for standard main-spindle internal turning, forward profiling, and facing inside tight clearance setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuenched \u0026amp; Hardened Alloy Steel Shank:\u003c\/strong\u003e High-tensile steel core processed via advanced thermal induction to absorb high-frequency harmonics and prevent deflection under sudden cutting loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Strategic Side Cutting Lead Angle:\u003c\/strong\u003e Balances mechanical forces between axial and radial directions, allowing stable shoulder squareness and smooth internal profiling transitions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Screw Clamping Mechanism:\u003c\/strong\u003e Uses a high-tensile M3.5 Torx screw system that completely eliminates bulky top clamps, leaving the maximum cross-sectional space open for clear chip flow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS14N-SSSCR09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e14\u003c\/strong\u003e14mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eN\u003c\/strong\u003e160mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14 mm\u003c\/td\u003e\n\u003ctd\u003e0.5512 inches (Fits metric blocks or standard holders via reduction sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e160 mm\u003c\/td\u003e\n\u003ctd\u003e6.2992 inches (Compact format optimized for rigidity in shallow holes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e19 mm\u003c\/td\u003e\n\u003ctd\u003e0.7480 inches (Excellent for tight, micro-internal cavities)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e120 - 200 m\/min (393 - 656 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.06 - 0.22 mm\/rev (0.0024 - 0.0086 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e70 - 140 m\/min (229 - 459 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.05 - 0.18 mm\/rev (0.0020 - 0.0070 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e90 - 160 m\/min (295 - 524 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.25 mm\/rev (0.0031 - 0.0098 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts?\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e \u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e with optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe highly specialized 14mm tool diameter makes the S14N-SSSCR09 highly effective for precise internal profiles across complex manufacturing setups:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Internal Step Turning:\u003c\/strong\u003e Ideal for machining small step-bores, inner lips, and precise relief tracks inside small valve sleeves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMain-Spindle High-Accuracy Boring:\u003c\/strong\u003e Perfect for completing forward-spindle internal tracks on standard turning centers without compromising part geometry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall Machined Bushings \u0026amp; Hubs:\u003c\/strong\u003e Widely applied in automotive and pneumatic component lines where the inner diameter sits strictly between 19mm and 25mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 14mm cylindrical shank fits perfectly into standard metric CNC lathe turrets, static VDI blocks, and precise split-sleeve tool blocks. When loaded into larger metric or imperial CNC configurations, it easily aligns via standard multi-size reduction bushes. It works seamlessly across premium CNC equipment brands including Haas, Mazak, DN Solutions\/Doosan, Okuma, and specialized live-tooling lathes configured for precise standard-spindle machining cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S14N-SSSCR09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eAt BEYOND, structural integrity is our baseline. The S14N-SSSCR09 undergoes rigorous multi-axis automated induction hardening and automated pocket milling. By locking insert seat tolerances down within a strict ±0.01mm limit, we eliminate micro-movements under heavy impact. This gives your shop predictable tool performance, reducing unexpected downtime across large-scale manufacturing shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"14mm bar provides perfect rigidity for my specialized valves\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eIt's always hard to find high-quality 14mm boring bars in standard right-hand configuration. BEYOND nailed this tool. The steel is stiff, and clamping SCMT 09T3 inserts is dead-accurate. Vibration completely disappeared on my carbon steel tubes.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Harrison D., Precision Lathe Programmer (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Hervorragende Bohrungsqualität ohne Vibration\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eDie 14mm-Ausführung ist perfekt für unsere engen Bauteile. Sehr robuster Plattensitz. Guter Späneabfluss, da der Schraubkopf extrem flach gehalten ist. Absolut empfehlenswert für CNC-Drehmaschinen.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Jürgen W., Machinist Team Lead (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Stelo d'acciaio molto rigido per fori ciechi\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eGreat bar for tight counter-boring. Used on a main-spindle setup and the dimensions are holding rock steady within 0.01mm across long batches. Fast shipping to Europe.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Matteo G., CNC Turning Operator (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"14mmの右勝手工具として最高品質です\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e内径19mm超の狭いボス加工に導入しました。鋼シャンクですが160mmと絶妙な長さで、チャタリングが全く発生しません。SCMTチップのクランプが極めて安定しています。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Takashi N., Manufacturing Engineer (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"No chip nesting in blind cylinders\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe screw clamping gives perfect open clearance. When combined with through-coolant or steady flood lines, chips lift right out of the 20mm entry holes without binding.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Alistair K., Small Parts Turning Specialist (Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the benefit of a 14mm tool body over a standard 12mm or 16mm bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: A 14mm bar provides up to \u003cstrong\u003e85% more structural rigidity\u003c\/strong\u003e than a 12mm bar, while allowing access to narrow internal spaces that a 16mm bar cannot physically enter. It is the perfect balance for deep internal tracks with an opening between 19mm and 23mm.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this S14N tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum safe operating bore diameter (D-min) is \u003cstrong\u003e19mm (0.748 inches)\u003c\/strong\u003e. Running this tool inside any bore smaller than 19mm will cause the back heel structure of the right-handed tool head to rub against the internal wall, ruining the part and chipping the insert.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Does this boring bar come with through-coolant holes?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The S14N-SSSCR09 is a solid high-tensile alloy steel shank bar. For high-pressure deep blind bores, we recommend directing external flood nozzles straight into the cutting zone to ensure continuous, fast chip evacuation out of the open hole.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e While 14mm is a specialized metric standard widely utilized across advanced European and Asian CNC shops, it functions as a highly rigid heavy-duty alternative to traditional 1\/2-inch (12.7mm) imperial boring bars in North American machine shops when paired with metric-adapted tool blocks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Surface Waves \/ High-Frequency Chatter:\u003c\/em\u003e Check that the tool nose center line sits exactly on the spindle axis center. For narrow 14mm profiles, even a 0.1mm height deviation changes cutting pressure dramatically. Ensure at least 3xD to 4xD length of the bar is clamped tightly in a high-accuracy split sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Torn Surface \/ Long Stringy Chips:\u003c\/em\u003e The square SCMT 09T3 insert relies on correct feed force to break material. If the material string-nests, increase the feed rate (f) slightly or choose a sharper positive-rake chip groove geometry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618203730092,"sku":"S14N-SSSCR09","price":16.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S14N-SSSCR09_right_hand_internal_turning_boring_bar_14mm_solid_steel_shank_for_SCMT09T304_indexable_carbide_inserts_CNC_lathe_machining.jpg?v=1780882408"},{"product_id":"beyond-s14n-ssscl09-left-hand-boring-bar","title":"BEYOND S14N-SSSCL09 Left Hand Boring Bar | 14mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S14N-SSSCL09 Left Hand Boring Bar – 14mm Rigid Steel Screw Locking CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the cutting head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching left-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which left-hand boring bar is best optimized to eliminate harmonic vibration during small internal pocketing and reverse profiling in 19mm+ clearance diameters while using SCMT 09T3 square inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S14N-SSSCL09\u003c\/strong\u003e is a highly specialized, industrial-grade \u003cstrong\u003eSolid Alloy Steel Left Hand Internal Turning Boring Bar\u003c\/strong\u003e engineered for precise counter-clockwise spindle or back-turning operations on CNC lathes. Featuring an engineered \u003cstrong\u003e14mm shank diameter\u003c\/strong\u003e and a compact \u003cstrong\u003e160mm total length\u003c\/strong\u003e, this tool holder provides exceptional structural resistance against bending deflection in narrow, deep-hole setups. It fills a critical gap for workshops processing small-diameter chambers, offering a stable, anti-vibration tool body that prevents part scrap and holds tight structural tolerances.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is custom-milled to seat standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e indexable square carbide inserts. The integration of a 75-degree approach angle ensures that radial push-back forces are redirected axially down the tool shank, vastly lowering micro-chatter in restricted diameters. When loaded with micro-grain carbide substrates featuring advanced ground positive-rake chipbreaker geometries, it smoothly shears stubborn metal fibers. The specialized pocket geometry promotes instantaneous chip breaking, turning continuous stringy ribbons into short, tight coils that evacuate seamlessly without packing the narrow bore or scoring precision finishes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialized 14mm Left-Hand Layout:\u003c\/strong\u003e Engineered specifically for sub-spindle handoffs, reverse-spindle profiling, and back-facing inside tight clearance setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuenched \u0026amp; Hardened Alloy Steel Shank:\u003c\/strong\u003e High-tensile steel core processed via advanced thermal induction to absorb high-frequency harmonics and prevent deflection under sudden cutting loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Strategic Side Cutting Lead Angle:\u003c\/strong\u003e Balances mechanical forces between axial and radial directions, allowing stable shoulder squareness and smooth internal profiling transitions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Screw Clamping Mechanism:\u003c\/strong\u003e Uses a high-tensile M3.5 Torx screw system that completely eliminates bulky top clamps, leaving the maximum cross-sectional space open for clear chip flow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS14N-SSSCL09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e14\u003c\/strong\u003e14mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eN\u003c\/strong\u003e160mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003eLeft-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e14 mm\u003c\/td\u003e\n\u003ctd\u003e0.5512 inches (Fits metric blocks or standard holders via reduction sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e160 mm\u003c\/td\u003e\n\u003ctd\u003e6.2992 inches (Compact format optimized for rigidity in shallow holes)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e19 mm\u003c\/td\u003e\n\u003ctd\u003e0.7480 inches (Excellent for tight, micro-internal cavities)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e110 - 190 m\/min (360 - 623 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.06 - 0.22 mm\/rev (0.0024 - 0.0086 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e65 - 130 m\/min (213 - 426 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.05 - 0.18 mm\/rev (0.0020 - 0.0070 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e85 - 150 m\/min (278 - 492 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.25 mm\/rev (0.0031 - 0.0098 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts?\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e \u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe highly specialized 14mm tool diameter makes the S14N-SSSCL09 highly effective for precise internal profiles across complex manufacturing setups:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Internal Step Turning:\u003c\/strong\u003e Ideal for machining small step-bores, inner lips, and precise relief tracks inside small valve sleeves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-Spindle Back Boring:\u003c\/strong\u003e Perfect for completing reverse-spindle internal tracks on multi-axis turning centers to avoid manual part flipping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall Machined Bushings \u0026amp; Hubs:\u003c\/strong\u003e Widely applied in automotive and pneumatic component lines where the inner diameter sits strictly between 19mm and 25mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 14mm cylindrical shank fits perfectly into standard metric CNC lathe turrets, static VDI blocks, and precise split-sleeve tool blocks. When loaded into larger metric or imperial CNC configurations, it easily aligns via standard multi-size reduction bushes. It works seamlessly across premium CNC equipment brands including Haas, Mazak, DN Solutions\/Doosan, Citizen, Star, and specialized live-tooling lathes configured for precise reverse-spindle machining cycles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S14N-SSSCL09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eAt BEYOND, structural integrity is our baseline. The S14N-SSSCL09 undergoes rigorous multi-axis automated induction hardening and automated pocket milling. By locking insert seat tolerances down within a strict ±0.01mm limit, we eliminate micro-movements under heavy impact. This gives your shop predictable tool performance, reducing unexpected downtime across large-scale manufacturing shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"14mm bar is a savior for non-standard boring jobs\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eHard to find high-quality 14mm boring bars, especially left-handed. BEYOND nailed this tool. The steel is stiff, and clamping SCMT 09T3 inserts is dead-accurate. Vibration completely disappeared on my carbon steel tubes.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Harrison D., Precision Lathe Programmer (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Hervorragende Bohrungsqualität ohne Vibration\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eDie 14mm-Ausführung ist perfekt für unsere engen Bauteile. Sehr robuster Plattensitz. Guter Späneabfluss, da der Schraubkopf extrem flach gehalten ist. Absolut empfehlenswert für CNC-Drehmaschinen.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Jürgen W., Machinist Team Lead (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Stelo d'acciaio molto rigido\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eGreat bar for tight counter-boring. Used on a sub-spindle setup and the dimensions are holding rock steady within 0.01mm across long batches. Fast shipping to Europe.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Matteo G., CNC Turning Operator (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"14mmの左勝手工具として最高品質です\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e内径19mm超の狭いボス加工に導入しました。鋼シャンクですが160mmと絶妙な長さで、チャタリングが全く発生しません。SCMTチップのクランプが極めて安定しています。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Takashi N., Manufacturing Engineer (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"No chip nesting in blind cylinders\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe screw clamping gives perfect open clearance. When combined with through-coolant or steady flood lines, chips lift right out of the 20mm entry holes without binding.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Alistair K., Small Parts Turning Specialist (Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the benefit of a 14mm tool body over a standard 12mm or 16mm bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: A 14mm bar provides up to \u003cstrong\u003e85% more structural rigidity\u003c\/strong\u003e than a 12mm bar, while allowing access to narrow internal spaces that a 16mm bar cannot physically enter. It is the perfect balance for deep internal tracks with an opening between 19mm and 23mm.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this S14N tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum safe operating bore diameter (D-min) is \u003cstrong\u003e19mm (0.748 inches)\u003c\/strong\u003e. Running this tool inside any bore smaller than 19mm will cause the back heel structure of the left-handed tool head to rub against the internal wall, ruining the part and chipping the insert.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Does this boring bar come with through-coolant holes?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The S14N-SSSCL09 is a solid high-tensile alloy steel shank bar. For high-pressure deep blind bores, we recommend directing external flood nozzles straight into the left-hand cutting zone to ensure continuous, fast chip evacuation out of the open hole.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e While 14mm is a specialized metric standard widely utilized across advanced European and Asian CNC shops, it functions as a highly rigid heavy-duty alternative to traditional 1\/2-inch (12.7mm) imperial boring bars in North American machine shops when paired with metric-adapted tool blocks.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Surface Waves \/ High-Frequency Chatter:\u003c\/em\u003e Check that the tool nose center line sits exactly on the spindle axis center. For narrow 14mm profiles, even a 0.1mm height deviation changes cutting pressure dramatically. Ensure at least 3xD to 4xD length of the bar is clamped tightly in a high-accuracy split sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Torn Surface \/ Long Stringy Chips:\u003c\/em\u003e The square SCMT 09T3 insert relies on correct feed force to break material. If the material string-nests, increase the feed rate (f) slightly or choose a sharper positive-rake chip groove geometry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618204450988,"sku":"S14N-SSSCL09","price":16.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S14N-SSSCL09_left_hand_internal_turning_boring_bar_14mm_solid_steel_shank_for_SCMT09T304_indexable_carbide_inserts_CNC_lathe_machining.jpg?v=1780881874"},{"product_id":"beyond-s16q-ssscr09-boring-bar-holder","title":"BEYOND S16Q-SSSCR09 Boring Bar | 16mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S16Q-SSSCR09 Boring Bar – 16mm High Stiffness Solid Steel Screw Clamping CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert shown seated on the tool head in our product photography is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your compatible turning inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which internal boring bar is best optimized for high-rigidity 16mm lathe operations using square SCMT 09T3 inserts to minimize chatter?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S16Q-SSSCR09\u003c\/strong\u003e is an industrial-grade, high-stiffness \u003cstrong\u003eSolid Alloy Steel Internal Turning Boring Bar\u003c\/strong\u003e engineered to provide exceptional precision for modern CNC lathe operations. Featuring a calibrated \u003cstrong\u003e16mm shank diameter\u003c\/strong\u003e and a \u003cstrong\u003e180mm overall length\u003c\/strong\u003e, this right-hand indexable tool holder offers machine shops the ideal ratio of tool mass to extension distance. This structural design efficiently dampens high-frequency harmonic vibrations on internal profiling and counter-boring cycles, preventing surface defects on critical metal parts.\u003c\/p\u003e\n\u003cp\u003eThis premium boring tool is engineered to accommodate international standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e (3\/8\" Inscribed Circle) square carbide inserts. By pairing a 75-degree approach lead angle with the inherent balanced geometry of a square insert, the tool structural layout shifts the majority of mechanical cutting deflection forces axially straight into the lathe turret rather than radially into the thin walls of the workpiece. When utilized with ground positive-rake chipbreaker geometries, it cleanly shears carbon steels, alloys, and stainless steel matrixes. The dedicated pocket geometry forces rapid chip curling, fracturing dangerous long ribbon chips into small, easily evacuating fragments that prevent internal bore scratching or catastrophic chip nest binding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Rigidity 16mm Solid Steel Body:\u003c\/strong\u003e Quenched and tempered under advanced thermal processes to maximize yield strength and resist bending deflection during deep-hole internal tracks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision-Milled SCMT 09T3 Pocket:\u003c\/strong\u003e Locks the insert firmly within a tight ±0.01mm tolerance seat boundary, eliminating micro-vibrations and ensuring predictable dimensional accuracy across batch operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrategic 75° Lead Angle:\u003c\/strong\u003e Optimizes force distribution to balance axial and radial push-back, allowing smoother transitions during internal step profiling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreamlined Screw-Lock System:\u003c\/strong\u003e Uses a low-profile Torx screw mechanism that removes the need for bulky top-clamp parts, ensuring open pathways for high-speed chip extraction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eFlawless CNC tool configuration demands absolute dimension accuracy. Below is the structural decoding of the \u003cstrong\u003eS16Q-SSSCR09\u003c\/strong\u003e standard international ISO designation rules:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e16\u003c\/strong\u003e16mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eQ\u003c\/strong\u003e180mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003ctd\u003e0.6299 inches (Easily adapted via 5\/8\" tool blocks and split sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e180 mm\u003c\/td\u003e\n\u003ctd\u003e7.0866 inches (Perfect medium-reach format for high stiffness)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e21 mm\u003c\/td\u003e\n\u003ctd\u003e0.8267 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e130 - 220 m\/min (426 - 721 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.25 mm\/rev (0.0031 - 0.0098 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e80 - 150 m\/min (262 - 492 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.06 - 0.20 mm\/rev (0.0023 - 0.0078 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e100 - 180 m\/min (328 - 590 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.30 mm\/rev (0.0039 - 0.0118 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe compact 16mm tool body makes the S16Q-SSSCR09 highly effective for precise internal profiles across specialized setups:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTight Internal Cavity Boring:\u003c\/strong\u003e Safely processes cylindrical chambers down to 21mm minimum diameters without risking heel-rubbing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Internal Step Profiling:\u003c\/strong\u003e The 75° approach angle enables clean cutting of multi-stage internal diameters, relief grooves, and precise face boring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSemi-Finish to Light Roughing Cycles:\u003c\/strong\u003e Perfect for machining mechanical bushings, hydraulic pipe housings, and custom automotive transmission sleeves.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 16mm cylindrical shank fits perfectly into standard metric CNC lathe turrets, VDI static tool holders, and specialized boring bar split sleeves. It is fully cross-compatible with standard 5\/8-inch imperial tool cribs when paired with adapter blocks. It integrates seamlessly with global CNC machinery setups including Haas, Mazak, DN Solutions\/Doosan, Okuma, and manual lathe quick-change tool posts optimized for high-accuracy internal turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S16Q-SSSCR09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eAt BEYOND, structural integrity is our baseline. The S16Q-SSSCR09 undergoes rigorous multi-axis automated induction hardening and automated pocket milling. By locking insert seat tolerances down within a strict ±0.01mm limit, we eliminate micro-movements under heavy impact. This gives your shop predictable tool performance, reducing unexpected downtime across large-scale manufacturing shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Completely solved my chatter problems in tight tubes\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eI run a small batch production of custom hydraulic adapters with 24mm inner bores. Thinner bars vibrated terribly, but this 16mm BEYOND bar handles the load effortlessly. It uses our standard SCMT 09T3 inserts, making inventory management incredibly simple.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Marcus V., CNC Operator (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Ausgezeichnete Qualität und Maßhaltigkeit\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSehr präzise gefertigter Plattensitz. Die SCMT 09T304 Wendeplatten sitzen bombenfest. Der Spanfluss ist dank des schraubengeklemmten Kopfes absolut frei. Ich kann diese Bohrstange für C45-Stahl wärmstens empfehlen.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Dieter K., Workshop Lead (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo rapporto qualità prezzo\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eLa barra da 16mm offre un'eccellente rigidità torsionale su fori profondi. Finitura superficiale nera molto resistente alla corrosione del refrigerante. Consegna super veloce in Italia.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Paolo R., Precision Engineer (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"抜群の剛性で内径面が安定しました\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e最小加工径が21mmなので、狭いワークの内径切削に重宝しています。突出し長さを3倍径にしてもビビらず、チップの刃先が長持ちするようになりました。ネジの耐久性も高いです。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Satoshi T., Production Tech (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Impeccable chip evacuation on deep blind bores\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe low profile screw clamp leaves plenty of room for high-pressure coolant to flush chips out. Zero bird-nesting issues on medium carbon steel components since making the switch.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Liam O., Manual \u0026amp; CNC Machinist (Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I mount SCMT 1204 style inserts into the S16Q-SSSCR09 boring bar pocket?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: No, this tool holder is custom-milled exclusively for \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e inserts (9.525mm \/ 3\/8\" inscribed circle). If your application requires heavier 12mm inserts, you must purchase our larger capacity 12-size boring bar series.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum safe entry bore diameter for this 16mm tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum safe operating bore diameter (D-min) is \u003cstrong\u003e21mm (0.82 inches)\u003c\/strong\u003e. Running this tool inside a bore smaller than 21mm will cause the back heel structure of the steel head to rub directly against the internal wall, destroying surface finish and causing rapid insert breakage.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the recommended maximum overhang ratio for this solid steel tool bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: For premium solid steel boring bars like the S16Q series, the ideal operating extension length is within \u003cstrong\u003e3 times the diameter (3xD)\u003c\/strong\u003e, which equals roughly 48mm of overhang. For depths extending up to 4xD, you can still run safely by slightly dropping your cutting speed (Vc) and feed per revolution (f).\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In traditional North American imperial machinists' blueprints, this 16mm metric tool holder serves as a rigid cross-over alternative for standard 5\/8-inch diameter indexable boring bars carrying size 3-2.5 square inserts (commonly cataloged as standard S10Q-SSSCR3 formats across US tooling cribs).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Surface Waves \/ High-Frequency Chatter:\u003c\/em\u003e Ensure the tool nose center line aligns perfectly with the spindle center height. A micro-deviation here dramatically alters cutting pressure. Ensure at least 3xD to 4xD length of the bar is clamped tightly in a high-accuracy split sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Long Bird-Nesting Ribbon Chips:\u003c\/em\u003e The square SCMT 09T3 insert requires sufficient depth of cut (DOC) and feed force to engage its mechanical chipbreaker groove. Try increasing your feed rate (f) slightly or choosing a specialized sharp chip groove design.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618208972972,"sku":"S16Q-SSSCR09","price":18.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S16Q-SSSCR09_right_hand_internal_turning_boring_bar_16mm_solid_steel_shank_for_SCMT09T304_indexable_carbide_inserts_CNC_lathe_machining.jpg?v=1780814237"},{"product_id":"beyond-s16q-ssscl09-left-hand-boring-bar","title":"BEYOND S16Q-SSSCL09 Left Hand Boring Bar | 16mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S16Q-SSSCL09 Left Hand Boring Bar – 16mm Rigid Alloy Steel Screw Clamping CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the tool head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching left-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which left-hand boring bar is best optimized to eliminate harmonic vibration during small internal pocketing and reverse profiling in 21mm+ clearance diameters while using SCMT 09T3 square inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S16Q-SSSCL09\u003c\/strong\u003e is a high-precision, industrial-grade \u003cstrong\u003eSolid Alloy Steel Left Hand Internal Turning Boring Bar\u003c\/strong\u003e engineered for specialized counter-clockwise spindle or back-turning operations on CNC lathes. Featuring a highly compact \u003cstrong\u003e16mm shank diameter\u003c\/strong\u003e and a \u003cstrong\u003e180mm standard length\u003c\/strong\u003e, this tool holder provides superior structural resistance against deflection on deep internal cuts. It is designed to bridge the gap between heavy stock removal and tight clearances, offering workshops a highly stable, anti-vibration backbone for processing structural components with complex inner profiles.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is custom-milled to seat standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e indexable square carbide inserts. The integration of a 75-degree approach angle ensures that radial push-back forces are redirected axially down the tool shank, vastly lowering micro-chatter in restricted diameters. When loaded with micro-grain carbide substrates featuring advanced ground positive-rake chipbreaker geometries, it smoothly shears stubborn metal fibers. The specialized pocket geometry promotes instantaneous chip breaking, turning continuous stringy ribbons into short, tight coils that evacuate seamlessly without packing the narrow bore or scoring precision finishes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Left-Hand (L) Geometry:\u003c\/strong\u003e Custom-engineered for sub-spindle handoffs, reverse-spindle profiling, and back-facing operations in constrained setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuenched and Tempered Alloy Steel Body:\u003c\/strong\u003e Thermal-processed to high Rockwell hardness to resist permanent deflection and absorb high-frequency harmonics within a slim 16mm profile.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Strategic Lead Angle:\u003c\/strong\u003e Optimizes force distribution to balance axial and radial push-back, allowing smoother transitions during internal step profiling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Screw-Lock Clamping:\u003c\/strong\u003e Employs an ultra-secure M3.5 Torx screw mechanism, eliminating bulky top clamps to ensure maximum chip clearance space in tight bores.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS16Q-SSSCL09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e16\u003c\/strong\u003e16mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eQ\u003c\/strong\u003e180mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003eLeft-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16 mm\u003c\/td\u003e\n\u003ctd\u003e0.6299 inches (Fits standard 5\/8\" or adapted tool blocks via reduction bush)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e180 mm\u003c\/td\u003e\n\u003ctd\u003e7.0866 inches (Perfect compact-reach format for high stiffness)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e21 mm\u003c\/td\u003e\n\u003ctd\u003e0.8267 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e120 - 200 m\/min (393 - 656 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.25 mm\/rev (0.0031 - 0.0098 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e70 - 140 m\/min (229 - 459 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.06 - 0.20 mm\/rev (0.0023 - 0.0078 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e90 - 160 m\/min (295 - 524 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.30 mm\/rev (0.0039 - 0.0118 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e with optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe compact 16mm tool body makes the S16Q-SSSCL09 highly effective for precise internal profiles across specialized setups:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-Spindle CNC Configurations:\u003c\/strong\u003e Excellent for executing back-boring profiles on multi-tasking lathes where the second spindle rotates in reverse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall Bore Cavity Profiling:\u003c\/strong\u003e Safely processes cylindrical chambers down to 21mm minimum diameters without risking heel-rubbing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive Hydraulic Components:\u003c\/strong\u003e Ideal for machining internal seal grooves, step cavities, and valve blocks in tight compact spaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 16mm cylindrical shank layout mounts directly into CNC turret static blocks, VDI tool holders, and precise split-sleeve reduction bushings. It offers flawless compatibility with standard 5\/8-inch or larger imperial tool cribs when paired with adapter blocks. It integrates seamlessly with global CNC machinery setups including Haas, Mazak, DN Solutions\/Doosan, Okuma, and specialized Swiss-type multi-axis lathes that require rigid left-hand tool geometries.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S16Q-SSSCL09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eAt BEYOND, structural integrity is our baseline. The S16Q-SSSCL09 undergoes rigorous multi-axis automated induction hardening and automated pocket milling. By locking insert seat tolerances down within a strict ±0.01mm limit, we eliminate micro-movements under heavy impact. This gives your shop predictable tool performance, reducing unexpected downtime across large-scale manufacturing shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Outstanding rigid bar for reverse boring cycles\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe needed a reliable left-hand 16mm bar for an internal profiling job on a sub-spindle. This BEYOND bar has been superb. Zero vibration lines on steel tubes. The screw pocket is extremely well milled for a 16mm tool.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Brandon T., Shop Supervisor (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Perfekte Linksausführung, sehr stabil\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eGroßartige Qualität für diesen Preis. Der 16mm Schaft passt ideal in unsere Reduzierhülse. Spanbruch bei Edelstahl mit SCMT 09T3 Platten ist absolut sauber. Keine lästigen Spänenester mehr in der kleinen Bohrung.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Manfred S., Machinist (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo stelo, finitura eccellente\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eVery tough alloy body. The screw threads hold up great even under heavy coolant pressure and constant indexing. Highly stable left-hand internal tool for tight dimensions.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Lorenzo M., CNC Operator (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"内径加工のビビリが完全に止まりました\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e逆転主軸加工用に購入。16mmシャンクでありながら鋼の剛性が高く、狭い内径でも全くビビりません。SCMTチップの座りも完璧で、寸法がビシッと決まります。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Kenji H., Production Engineer (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Excellent chip clearance in blind cavities\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe low profile Torx screw keeps the tool head free of chip nests. Paired with a polished BEYOND aluminum insert, it turns internal brass bushings with mirror-like finishes.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Oliver W., Precision Turner (Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What makes the S16Q-SSSCL09 different from the S16Q-SSSCR09?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The crucial factor is the cutting orientation. SSSCR09 is a Right-Hand tool holder, while the \u003cstrong\u003eSSSCL09 is a Left-Hand (L) tool holder\u003c\/strong\u003e. Left-hand bars are vital when running reverse spindle directions, working on sub-spindles, or completing back-boring passes from the inside out.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this 16mm tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum safe operating bore diameter (D-min) is \u003cstrong\u003e21mm (0.82 inches)\u003c\/strong\u003e. Running this tool inside a bore smaller than 21mm will cause the back heel structure of the left-handed steel head to rub directly against the internal wall, destroying surface finish and causing rapid insert breakage.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use SCMT 1204 style inserts into this boring bar pocket?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: No, this model is custom-milled exclusively for \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e inserts (9.525mm \/ 3\/8\" inscribed circle). If your application requires heavier 12mm inserts, you must purchase our larger capacity 12-size boring bar series.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In traditional North American imperial machinists' blueprints, this 16mm metric tool holder serves as a rigid cross-over alternative for standard 5\/8-inch diameter left-hand indexable boring bars carrying size 3-2.5 square inserts (commonly cataloged as standard S10Q-SSSCL3 formats across US tooling cribs).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Surface Waves \/ High-Frequency Chatter:\u003c\/em\u003e Ensure the tool nose center line aligns perfectly with the spindle center height. For left-hand bars in slim diameters, a slight setup error can cause immediate heel rubbing. Ensure at least 3xD to 4xD length of the bar is clamped tightly in a high-accuracy split sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Rapid Edge Cracking \/ Edge Micro-Chipping:\u003c\/em\u003e This typically indicates chip nesting in deep blind bores. Ensure heavy flood coolant or through-coolant pressure is pointing directly at the left-hand cutting pocket to force the broken chips outward.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618209169580,"sku":"S16Q-SSSCL09","price":18.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S16Q-SSSCL09_left_hand_internal_turning_boring_bar_16mm_solid_steel_shank_for_SCMT09T304_indexable_carbide_inserts_CNC_lathe_machining.jpg?v=1780814080"},{"product_id":"beyond-s20r-ssscr09-boring-bar-holder","title":"BEYOND S20R-SSSCR09 Boring Bar | 20mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S20R-SSSCR09 Boring Bar – 20mm High Stiffness Solid Steel Screw Clamping CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert shown seated on the tool head in our product photography is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your compatible turning inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which boring bar is best optimized for internal turning in narrow 25mm bores while using standard SCMT 09T3 square inserts to maximize tool life and eliminate chatter?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S20R-SSSCR09\u003c\/strong\u003e is an industrial-grade, high-stiffness \u003cstrong\u003eSolid Alloy Steel Internal Turning Boring Bar\u003c\/strong\u003e engineered to provide exceptional precision for modern CNC lathe operations. Featuring a calibrated \u003cstrong\u003e20mm shank diameter\u003c\/strong\u003e and a \u003cstrong\u003e200mm overall length\u003c\/strong\u003e, this right-hand indexable tool holder offers machine shops the ideal ratio of tool mass to extension distance. This structural design efficiently dampens high-frequency harmonic vibrations on internal profiling and counter-boring cycles, preventing surface defects on critical metal parts.\u003c\/p\u003e\n\u003cp\u003eThis premium boring tool is engineered to accommodate international standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e (3\/8\" Inscribed Circle) square carbide inserts. By pairing a 75-degree approach lead angle with the inherent balanced geometry of a square insert, the tool structural layout shifts the majority of mechanical cutting deflection forces axially straight into the lathe turret rather than radially into the thin walls of the workpiece. When utilized with ground positive-rake chipbreaker geometries, it cleanly shears carbon steels, alloys, and stainless steel matrixes. The dedicated pocket geometry forces rapid chip curling, fracturing dangerous long ribbon chips into small, easily evacuating fragments that prevent internal bore scratching or catastrophic chip nest binding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Rigidity 20mm Solid Steel Body:\u003c\/strong\u003e Quenched and tempered under advanced thermal processes to maximize yield strength and resist bending deflection during deep-hole internal tracks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision-Milled SCMT 09T3 Pocket:\u003c\/strong\u003e Locks the insert firmly within a tight ±0.01mm tolerance seat boundary, eliminating micro-vibrations and ensuring predictable dimensional accuracy across batch operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrategic 75° Lead Angle:\u003c\/strong\u003e Optimizes force distribution to balance axial and radial push-back, allowing smoother transitions during internal step profiling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreamlined Screw-Lock System:\u003c\/strong\u003e Uses a low-profile Torx screw mechanism that removes the need for bulky top-clamp parts, ensuring open pathways for high-speed chip extraction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eFlawless CNC tool configuration demands absolute dimension accuracy. Below is the structural decoding of the \u003cstrong\u003eS20R-SSSCR09\u003c\/strong\u003e standard international ISO designation rules:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e20\u003c\/strong\u003e20mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003e200mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003ctd\u003e0.7874 inches (Easily adapted via 3\/4\" or 1\" tool blocks and split sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200 mm\u003c\/td\u003e\n\u003ctd\u003e7.8740 inches (Perfect medium-reach format for high stiffness)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003ctd\u003e0.9842 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e130 - 220 m\/min (426 - 721 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.30 mm\/rev (0.0039 - 0.0118 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e80 - 150 m\/min (262 - 492 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.25 mm\/rev (0.0031 - 0.0098 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e100 - 180 m\/min (328 - 590 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.12 - 0.35 mm\/rev (0.0047 - 0.0137 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe compact 20mm tool body makes the S20R-SSSCR09 highly effective for precise internal profiles across specialized setups:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTight Internal Cavity Boring:\u003c\/strong\u003e Safely processes cylindrical chambers down to 25mm minimum diameters without risking heel-rubbing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Internal Step Profiling:\u003c\/strong\u003e The 75° approach angle enables clean cutting of multi-stage internal diameters, relief grooves, and precise face boring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSemi-Finish to Light Roughing Cycles:\u003c\/strong\u003e Perfect for machining mechanical bushings, hydraulic pipe housings, and custom automotive transmission sleeves.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 20mm cylindrical shank fits perfectly into standard metric CNC lathe turrets, VDI static tool holders, and specialized boring bar split sleeves. It is fully cross-compatible with standard 3\/4-inch and 1-inch imperial tool cribs when paired with adapter blocks. It integrates seamlessly with global CNC machinery setups including Haas, Mazak, DN Solutions\/Doosan, Okuma, and manual lathe quick-change tool posts optimized for high-accuracy internal turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S20R-SSSCR09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eAt BEYOND, structural integrity is our baseline. The S20R-SSSCR09 undergoes rigorous multi-axis automated induction hardening and automated pocket milling. By locking insert seat tolerances down within a strict ±0.01mm limit, we eliminate micro-movements under heavy impact. This gives your shop predictable tool performance, reducing unexpected downtime across large-scale manufacturing shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Completely solved my chatter problems in tight tubes\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eI run a small batch production of custom hydraulic adapters with 28mm inner bores. Thinner bars vibrated terribly, but this 20mm BEYOND bar handles the load effortlessly. It uses our standard SCMT 09T3 inserts, making inventory management incredibly simple.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Marcus V., CNC Operator (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Ausgezeichnete Qualität und Maßhaltigkeit\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSehr präzise gefertigter Plattensitz. Die SCMT 09T304 Wendeplatten sitzen bombenfest. Der Spanfluss ist dank des schraubengeklemmten Kopfes absolut frei. Ich kann diese Bohrstange für C45-Stahl wärmstens empfehlen.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Dieter K., Workshop Lead (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo rapporto qualità prezzo\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eLa barra da 20mm offre un'eccellente rigidità torsionale su fori profondi. Finitura superficiale nera molto resistente alla corrosione del refrigerante. Consegna super veloce in Italia.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Paolo R., Precision Engineer (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"抜群の剛性で内径面が安定しました\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e最小加工径が25mmなので、狭いワークの内径切削に重宝しています。突出し長さを3倍径にしてもビビらず、チップの刃先が長持ちするようになりました。ネジの耐久性も高いです。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Satoshi T., Production Tech (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Impeccable chip evacuation on deep blind bores\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe low profile screw clamp leaves plenty of room for high-pressure coolant to flush chips out. Zero bird-nesting issues on medium carbon steel components since making the switch.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Liam O., Manual \u0026amp; CNC Machinist (Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I mount SCMT 1204 style inserts into the S20R-SSSCR09 boring bar pocket?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: No, this tool holder is custom-milled exclusively for \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e inserts (9.525mm \/ 3\/8\" inscribed circle). If your application requires heavier 12mm inserts, you must purchase our larger capacity 12-size boring bar series.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum safe entry bore diameter for this 20mm tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum safe operating bore diameter (D-min) is \u003cstrong\u003e25mm (0.98 inches)\u003c\/strong\u003e. Running this tool inside a bore smaller than 25mm will cause the back heel structure of the steel head to rub directly against the internal wall, destroying surface finish and causing rapid insert breakage.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the recommended maximum overhang ratio for this solid steel tool bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: For premium solid steel boring bars like the S20R series, the ideal operating extension length is within \u003cstrong\u003e3 times the diameter (3xD)\u003c\/strong\u003e, which equals roughly 60mm of overhang. For depths extending up to 4xD, you can still run safely by slightly dropping your cutting speed (Vc) and feed per revolution (f).\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In traditional North American imperial machinists' blueprints, this 20mm metric tool holder serves as a rigid cross-over alternative for standard 3\/4-inch diameter indexable boring bars carrying size 3-2.5 square inserts (commonly cataloged as standard S12R-SSSCR3 formats across US tooling cribs).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Surface Waves \/ High-Frequency Chatter:\u003c\/em\u003e Ensure the tool nose center line aligns perfectly with the spindle center height. A micro-deviation here dramatically alters cutting pressure. Ensure at least 3xD to 4xD length of the bar is clamped tightly in a high-accuracy split sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Long Bird-Nesting Ribbon Chips:\u003c\/em\u003e The square SCMT 09T3 insert requires sufficient depth of cut (DOC) and feed force to engage its mechanical chipbreaker groove. Try increasing your feed rate (f) slightly or choosing a specialized sharp chip groove design.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618210873516,"sku":"S20R-SSSCR09","price":21.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S20R-SSSCR09_internal_turning_boring_bar_20mm_solid_steel_shank_for_SCMT09T304_indexable_carbide_inserts_CNC_lathe_machining.jpg?v=1780813892"},{"product_id":"beyond-s20r-ssscl09-left-hand-boring-bar","title":"BEYOND S20R-SSSCL09 Left Hand Boring Bar | 20mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S20R-SSSCL09 Left Hand Boring Bar – 20mm Rigid Alloy Steel Screw Clamping CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert seated on the tool head in our product imagery is for structural demonstration and mounting orientation purposes only. It is NOT included in the boring bar package. Please purchase your matching left-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which left-hand boring bar is best optimized to eliminate harmonic vibration during internal pocketing and reverse profiling in 25mm+ clearance diameters while using SCMT 09T3 square inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S20R-SSSCL09\u003c\/strong\u003e is a high-performance, industrial-grade \u003cstrong\u003eSolid Alloy Steel Left Hand Internal Turning Boring Bar\u003c\/strong\u003e engineered for specialized counter-clockwise spindle or back-turning operations on CNC lathes. Featuring a rigid \u003cstrong\u003e20mm shank diameter\u003c\/strong\u003e and a \u003cstrong\u003e200mm standard length\u003c\/strong\u003e, this tool holder provides superior structural resistance against deflection on deep internal cuts. It is designed to bridge the gap between heavy stock removal and tight clearances, offering workshops a highly stable, anti-vibration backbone for processing structural components with complex inner profiles.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder is custom-milled to seat standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e indexable square carbide inserts. The integration of a 75-degree approach angle ensures that radial push-back forces are redirected axially down the tool shank, vastly lowering micro-chatter. When loaded with micro-grain carbide substrates featuring advanced ground positive-rake chipbreaker geometries, it smoothly shears stubborn metal fibers. The specialized pocket geometry promotes instantaneous chip breaking, turning continuous stringy ribbons into short, tight coils that evacuate seamlessly without packing the bore or scoring precision finishes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Left-Hand (L) Geometry:\u003c\/strong\u003e Custom-engineered for sub-spindle handoffs, reverse-spindle profiling, and back-facing operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eQuenched and Tempered Alloy Steel Body:\u003c\/strong\u003e Thermal-processed to high Rockwell hardness to resist permanent deflection and absorb high-frequency harmonics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Strategic Lead Angle:\u003c\/strong\u003e Optimizes force distribution to balance axial and radial push-back, allowing smoother transitions during internal step profiling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Screw-Lock Clamping:\u003c\/strong\u003e Employs an ultra-secure M3.5 Torx screw mechanism, eliminating bulky top clamps to ensure maximum chip clearance space.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAbsolute geometric clarity is required for accurate CNC tool offsets. Below is the precise international ISO classification breakdown for the \u003cstrong\u003eS20R-SSSCL09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e20\u003c\/strong\u003e20mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003e200mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003eLeft-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 mm\u003c\/td\u003e\n\u003ctd\u003e0.7874 inches (Fits standard 3\/4\" or 1\" tool blocks via reduction bush)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e200 mm\u003c\/td\u003e\n\u003ctd\u003e7.8740 inches (Perfect medium-reach format for high stiffness)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003ctd\u003e0.9842 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e130 - 220 m\/min (426 - 721 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.30 mm\/rev (0.0039 - 0.0118 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e80 - 150 m\/min (262 - 492 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.25 mm\/rev (0.0031 - 0.0098 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e100 - 180 m\/min (328 - 590 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.12 - 0.35 mm\/rev (0.0047 - 0.0137 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe compact 20mm tool body makes the S20R-SSSCL09 highly effective for precise internal profiles across specialized setups:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSub-Spindle CNC Configurations:\u003c\/strong\u003e Excellent for executing back-boring profiles on multi-tasking lathes where the second spindle rotates in reverse.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall to Medium Bore Profiling:\u003c\/strong\u003e Safely processes cylindrical chambers down to 25mm minimum diameters without risking heel-rubbing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive Hydraulic Components:\u003c\/strong\u003e Ideal for machining internal seal grooves, step cavities, and valve blocks in medium-batch production runs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 20mm cylindrical shank layout mounts directly into CNC turret static blocks, VDI tool holders, and precise split-sleeve reduction bushings. It offers flawless compatibility with standard 3\/4-inch and 1-inch imperial tool cribs when paired with adapter blocks. It integrates seamlessly with global CNC machinery setups including Haas, Mazak, DN Solutions\/Doosan, Okuma, and specialized Swiss-type multi-axis lathes that require rigid left-hand tool geometries.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S20R-SSSCL09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Structured with micro-hard TiAlN coatings. Optimized to stop built-up edges (BUE) on sticky materials like 304 stainless steel and high-temp titanium alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Built with thick multi-layer Al2O3 + TiN coating lines. The benchmark standard for continuous, high-speed internal roughing passes on carbon structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. Custom-engineered for high-speed internal profiling of abrasive grey and ductile cast iron parts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eAt BEYOND, structural integrity is our baseline. The S20R-SSSCL09 undergoes rigorous multi-axis automated induction hardening and automated pocket milling. By locking insert seat tolerances down within a strict ±0.01mm limit, we eliminate micro-movements under heavy impact. This gives your shop predictable tool performance, reducing unexpected downtime across large-scale manufacturing shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Outstanding rigid bar for reverse boring cycles\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe needed a reliable left-hand 20mm bar for an internal profiling job on a sub-spindle. This BEYOND bar has been superb. Zero vibration lines on 4140 steel tubes. The screw pocket is extremely well milled.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Brandon T., Shop Supervisor (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Perfekte Linksausführung, sehr stabil\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eGroßartige Qualität für diesen Preis. Der 20mm Schaft passt ideal in unsere Reduzierhülse. Spanbruch bei Edelstahl mit SCMT 09T3 Platten ist absolut sauber. Keine lästigen Spänenester mehr in der Bohrung.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Manfred S., Machinist (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo stelo, finitura eccellente\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eVery tough alloy body. The screw threads hold up great even under heavy coolant pressure and constant indexing. Highly stable left-hand internal tool.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Lorenzo M., CNC Operator (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"内径加工のビビリが完全に止まりました\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e逆転主軸加工用に購入。20mmシャンクでありながら鋼の剛性が高く、突出し長さを3xDに設定しても全くビビりません。SCMTチップの座りも完璧で、寸法がビシッと決まります。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Kenji H., Production Engineer (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Excellent chip clearance in blind cavities\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe low profile Torx screw keeps the tool head free of chip nests. Paired with a polished BEYOND aluminum insert, it turns internal brass bushings with mirror-like finishes.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Oliver W., Precision Turner (Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What makes the S20R-SSSCL09 different from the S20R-SSSCR09?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The crucial factor is the cutting orientation. SSSCR09 is a Right-Hand tool holder, while the \u003cstrong\u003eSSSCL09 is a Left-Hand (L) tool holder\u003c\/strong\u003e. Left-hand bars are vital when running reverse spindle directions, working on sub-spindles, or completing back-boring passes from the inside out.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum entry bore diameter for this 20mm tool holder?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum safe operating bore diameter (D-min) is \u003cstrong\u003e25mm (0.98 inches)\u003c\/strong\u003e. Running this tool inside a bore smaller than 25mm will cause the back heel structure of the left-handed steel head to rub directly against the internal wall, destroying surface finish and causing rapid insert breakage.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use SCMT 1204 style inserts into this boring bar pocket?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: No, this model is custom-milled exclusively for \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e inserts (9.525mm \/ 3\/8\" inscribed circle). If your application requires heavier 12mm inserts, you must purchase our larger capacity 12-size boring bar series.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In traditional North American imperial machinists' blueprints, this 20mm metric tool holder serves as a rigid cross-over alternative for standard 3\/4-inch diameter left-hand indexable boring bars carrying size 3-2.5 square inserts (commonly cataloged as standard S12R-SSSCL3 formats across US tooling cribs).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Surface Waves \/ High-Frequency Chatter:\u003c\/em\u003e Ensure the tool nose center line aligns perfectly with the spindle center height. For left-hand bars, a slight setup error can cause immediate heel rubbing. Ensure at least 3xD to 4xD length of the bar is clamped tightly in a high-accuracy split sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Rapid Edge Cracking \/ Edge Micro-Chipping:\u003c\/em\u003e This typically indicates chip nesting in deep blind bores. Ensure heavy flood coolant or through-coolant pressure is pointing directly at the left-hand cutting pocket to force the broken chips outward.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618211463340,"sku":"S20R-SSSCL09","price":21.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S20R-SSSCL09_left_hand_internal_turning_boring_bar_20mm_solid_steel_shank_for_SCMT09T304_indexable_carbide_inserts_CNC_lathe_machining.jpg?v=1780813651"},{"product_id":"beyond-s25s-ssscr09-boring-bar-holder","title":"BEYOND S25S-SSSCR09 Boring Bar | 25mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S25S-SSSCR09 Boring Bar – 25mm High Rigidity Solid Steel Screw Clamping Internal Lathe Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert shown seated on the tool head in our product photography is for structural demonstration and orientation purposes only. It is NOT included in the boring bar package. Please purchase your compatible right-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which boring bar configuration is best optimized to deliver high-rigidity vibration damping in 32mm internal diameters while utilizing economical SCMT 09T3 square inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S25S-SSSCR09\u003c\/strong\u003e is an industrial-grade, precision-manufactured \u003cstrong\u003eSolid Alloy Steel Internal Turning Boring Bar\u003c\/strong\u003e engineered to provide the perfect balance between high structural rigidity and localized tool head clearance. Featuring a robust \u003cstrong\u003e25mm shank diameter\u003c\/strong\u003e and a \u003cstrong\u003e250mm overall length\u003c\/strong\u003e, this right-hand tool holder is structurally optimized to counteract heavy bending moments and high cutting forces. Unlike lighter 20mm bars that suffer from deflection, the S25S frame provides a dense steel mass backbone, making it the ideal solution for deep hole internal profiling, continuous boring, and medium-duty roughing cycles on standard CNC lathes.\u003c\/p\u003e\n\u003cp\u003eThis indexable boring bar is custom-milled to host standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e (3\/8\" Inscribed Circle) square carbide inserts. The integration of a 75° approach angle with a square geometry ensures that the majority of mechanical cutting pressure is directed axially into the lathe spindle rather than radially, significantly reducing internal chatter. When paired with ground positive rake chipbreaker profiles, the tool cleanly shears metal fibers. The specialized chip groove geometry forces immediate chip curling, fracturing long, continuous ribbons into small, easily evacuating chips that are swept out effortlessly by flood coolant, preventing internal surface scratching or catastrophic tool tip binding.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Rigidity 25mm Solid Shank:\u003c\/strong\u003e Drastically reduces harmonic vibrations on deep internal overhang cuts up to 3xD depth compared to narrower tool holders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision-Milled SCMT 09T3 Pocket:\u003c\/strong\u003e Delivers precise insert seating with a tight tolerance boundary, ensuring zero pocket movement under heavy multi-pass stock removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Strategic Lead Angle:\u003c\/strong\u003e Optimizes force distribution to balance axial and radial push-back, allowing smoother transitions during internal step profiling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreamlined Screw-Lock Clamping:\u003c\/strong\u003e Employs a low-profile Torx screw mechanism that eliminates bulky top clamps, maximizing chip evacuation space inside tight cylindrical bores.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Reference\u003c\/h2\u003e\n\u003cp\u003eAccurate parameter verification is vital for flawless CNC code execution. Below is the structural decoding of the \u003cstrong\u003eS25S-SSSCR09\u003c\/strong\u003e standard international ISO designation rules:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e25\u003c\/strong\u003e25mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e250mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Direction\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003ctd\u003e0.9842 inches (Fits standard 1\" turret blocks\/sleeves directly)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 mm\u003c\/td\u003e\n\u003ctd\u003e9.8425 inches (Highly adaptive for deep internal pocket tracking)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003ctd\u003e1.2598 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e140 - 240 m\/min (459 - 787 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.12 - 0.35 mm\/rev (0.0047 - 0.0137 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e90 - 160 m\/min (295 - 525 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.28 mm\/rev (0.0039 - 0.0110 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e110 - 200 m\/min (360 - 656 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.15 - 0.40 mm\/rev (0.0059 - 0.0157 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching high-performance turning inserts?\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e \u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe strategic combination of a dense 25mm steel shank with a highly clear 09-sized tool head pocket turns the S25S-SSSCR09 into a versatile workhorse:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium Bore Deep Hole Machining:\u003c\/strong\u003e Excellently handles internal cavity boring where entry spaces start at 32mm, maximizing rigid tool depth reach.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Internal Step Profiling:\u003c\/strong\u003e The 75° approach allows clean cutting of multi-stage internal diameters, relief grooves, and precise face boring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSemi-Finish to Light Roughing Cycles:\u003c\/strong\u003e Perfect for machining mechanical bushings, hydraulic pipe housings, and custom automotive transmission sleeves.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 25mm cylindrical shank fits perfectly into standard metric CNC lathe turrets, VDI static tool holders, and specialized boring bar split sleeves. It is fully cross-compatible with 1-inch imperial tool slots through standard reduction bush adapters. It integrates flawlessly with global CNC machinery setups including Haas (ST-15\/20), Mazak Quick Turn, Doosan\/DN Solutions Lynx, Okuma, and manual lathe quick-change tool posts optimized for high-accuracy internal turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S25S-SSSCR09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Nano-layered TiAlN compound on a high-toughness edge. Exceptional at preventing built-up edges (BUE) on sticky 304\/316 stainless steels and heat-resistant superalloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Features thick multi-layer Al2O3 + TiN coating lines. Fully optimized for high-velocity, continuous roughing passes on carbon and low-alloy structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. The premium choice for high-speed internal turning on grey and ductile cast iron shells.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eAt BEYOND, we build for structural persistence. The S25S-SSSCR09 undergoes precision multi-stage induction hardening and computer-guided pocket milling. By maintaining strict ±0.01mm pocket seat boundaries, we eliminate insert micro-movements under intense tool pressure. This ensures predictable tool wear patterns, giving your CNC workshop maximum operational security and repeatable sizing across multi-shift batches.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Outstanding rigid bar for 35mm bores\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eI replaced a thinner 20mm bar with this 25mm BEYOND bar, and the difference is massive. It uses the standard SCMT 09T3 inserts we always stock, but the heavy steel body completely wiped out our chatter issues in 4140 steel tubes. Excellent pocket quality.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Dave M., CNC Lead Programmer (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Hervorragende Vibrationsdämpfung\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSehr massive Ausführung. Der 25mm Schaft gibt maximale Stabilität beim Ausdrehen von zylindrischen Bohrungen. Die SCMT 09T3 Wendeplatten passen exakt rein. Die Bohrungsoberfläche ist makellos spiegelnd.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Hans B., Master Turner (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Stelo robusto, vite ad alta resistenza\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eUtensile ben temprato con ottima finitura superficiale nera. La stabilità della barra da 25mm abbinata all'inserto 09 permette di lavorare in profondità senza flessioni. Consegna rapida.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Stefano L., Workshop Specialist (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"ビビリが消えて内径面が非常に綺麗になりました\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eSCMT 09T3チップが使える25mmシャンクを探していました。この剛性は素晴らしいです。突出し量を長めに設定しても突発的な高周波ビビリが全く発生せず、チップの4コーナーをフルに使い切れます。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Takashi Y., Production Engineer (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Excellent pocket durability on tough steels\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe run this bar setup daily on our CNC lathe. The black oxide finish stands up well against aggressive synthetic water coolants. The insert seat stays square and sharp even after accidental overloads.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Robert H., Manufacturing Manager (United Kingdom)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use SCMT 1204 inserts on the BEYOND S25S-SSSCR09 boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: No, you cannot. This specific tool holder is custom-milled exclusively to fit \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e inserts (9.525mm \/ 3\/8\" inscribed circle). If your job profile demands the larger 12mm edge size inserts, you must purchase our larger capacity S25S-SSSCR12 boring bar series instead.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum internal diameter entry for this boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The minimum entry bore diameter (D-min) is \u003cstrong\u003e32mm (1.26 inches)\u003c\/strong\u003e. Even though the shank is 25mm, entering any bore smaller than 32mm will cause the back heel structure of the tool head to rub against the internal radius of your workpiece, leading to severe friction heat and insert breakage.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the recommended maximum overhang ratio for this solid steel tool bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: For premium solid steel boring bars like the S25S series, the ideal operating extension length is within \u003cstrong\u003e3 times the diameter (3xD)\u003c\/strong\u003e, which equals roughly 75mm of overhang. For depths extending up to 4xD, you can still run safely by slightly dropping your cutting speed (Vc) and feed per revolution (f).\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In standard North American imperial tooling catalogs, this 25mm metric tool holder acts as a high-strength direct alternative for standard 1-inch diameter indexable boring bars carrying size 3-2.5 square inserts (commonly cataloged as standard S16S-SSSCR3 models in US machine shops).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Persistent Surface Vibration Marks:\u003c\/em\u003e Verify that the tool nose center line aligns exactly with the spindle center height. A micro-deviation here dramatically alters cutting pressure. Also, ensure a minimum clamping length of 3xD to 4xD inside a high-precision split-sleeve block.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Long Bird-Nesting Ribbon Chips:\u003c\/em\u003e The square SCMT 09T3 insert requires sufficient depth of cut (DOC) and feed force to engage its mechanical chipbreaker groove. Try increasing your feed rate (f) slightly or choosing a specialized sharp chip groove design.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618211791020,"sku":"S25S-SSSCR09","price":33.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S25S-SSSCR09_internal_turning_boring_bar_25mm_solid_steel_shank_for_SCMT09T304_indexable_carbide_inserts_CNC_lathe_machining.jpg?v=1780812025"},{"product_id":"beyond-s25s-ssscl09-boring-bar-holder","title":"BEYOND S25S-SSSCL09 Left Hand Boring Bar | 25mm CNC Lathe Internal Turning Tool Holder for SCMT 09T3 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S25S-SSSCL09 Left Hand Boring Bar – 25mm Rigid Alloy Steel Screw Clamping CNC Lathe Internal Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert shown seated on the tool head in our product photography is for structural orientation and presentation purposes only. It is NOT included in the boring bar package. Please purchase your compatible left-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which left-hand boring bar is best optimized for stable internal profiling and high-efficiency chip evacuation in 32mm+ medium bores using SCMT square inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S25S-SSSCL09\u003c\/strong\u003e is a premium, industrial-grade \u003cstrong\u003eSolid Alloy Steel Left Hand Internal Turning Boring Bar\u003c\/strong\u003e meticulously engineered for specialized reverse-spindle or back-turning operations on CNC lathes. Featuring a highly rigid \u003cstrong\u003e25mm shank diameter\u003c\/strong\u003e and a \u003cstrong\u003e250mm standard length\u003c\/strong\u003e, this tool holder provides exceptional structural resistance against lateral cutting pressure. It is purpose-built to eliminate mechanical harmonics and chatter during medium-depth internal boring, profiling, and facing operations that require a dedicated left-hand tool path configuration.\u003c\/p\u003e\n\u003cp\u003eThis high-precision tool holder is engineered to host standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e indexable square carbide inserts. By leveraging a 75-degree approach angle alongside a square insert profile, the cutting force is directed primarily along the axial axis toward the lathe turret, maximizing structural stiffness. When outfitted with micro-grain carbide substrates featuring advanced ground-in positive rake chipbreaker geometries, it cleanly slices through stubborn workpiece surfaces. The engineered chip groove geometry prompts immediate breaking of continuous metal ribbons into short, tight curls, securing an unobstructed chip evacuation path out of deep cavities and preventing dangerous scratch marks on internal bore walls.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Left-Hand (L) Geometry:\u003c\/strong\u003e Perfect for specialized reverse-direction internal machining, counter-clockwise profiling, and back-boring configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardened High-Tensile Alloy Steel Body:\u003c\/strong\u003e Thermal-treated and quenched under strict control to enhance core toughness, preventing deformation under intense cutting loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Optimized Approach Angle:\u003c\/strong\u003e Effectively balance axial and radial forces to minimize tool deflection, allowing excellent performance on multi-pass internal roughing lines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Screw-Down Clamping:\u003c\/strong\u003e Employs an inset M3.5 Torx screw locking mechanism, keeping the tool head compact and maximizing the clearance path for seamless chip disposal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Nomenclature Cross-Guide\u003c\/h2\u003e\n\u003cp\u003eAccurate tool programming requires absolute geometric clarity. Below is the comprehensive breakdown of the standard ISO designation for the \u003cstrong\u003eS25S-SSSCL09\u003c\/strong\u003e model:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e25\u003c\/strong\u003e25mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e250mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003eLeft-Hand Cut\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003ctd\u003e0.9842 inches (Fits securely in standard 1\" lathe turret blocks\/sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 mm\u003c\/td\u003e\n\u003ctd\u003e9.8425 inches (Highly adaptive for deep internal pocket tracking)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003ctd\u003e1.2598 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e140 - 240 m\/min (459 - 787 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.12 - 0.35 mm\/rev (0.0047 - 0.0137 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e90 - 160 m\/min (295 - 525 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.28 mm\/rev (0.0039 - 0.0110 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e110 - 200 m\/min (360 - 656 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.15 - 0.40 mm\/rev (0.0059 - 0.0157 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching left-hand or neutral turning inserts?\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e \u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized chipbreaker configurations.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe solid 25mm structural shank of the S25S-SSSCL09 makes it the premium solution for aggressive internal cuts in specialized setups:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Turning Centers with Reverse Spindles:\u003c\/strong\u003e Tailor-made for left-side turrets or main spindles running in reverse rotation to direct chips downwards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep Pocket Back-Boring:\u003c\/strong\u003e Allows machinists to reach past internal shoulders and execute precise back-facing and inside relief steps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive and Valve Manufacturing:\u003c\/strong\u003e Excellent for processing internal bearing seats, gear rings, and customized sleeve interiors starting from 32mm diameters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 25mm cylindrical shank layout mounts cleanly into standard CNC turret blocks, VDI tooling blocks, and specialized split-sleeve boring bar holders. It offers effortless cross-compatibility with 1-inch imperial tool slots using standard reduction bush sleeves. It integrates seamlessly with premium turning equipment like Haas, Mazak, DN Solutions\/Doosan, Okuma, and specialized Swiss-type or multi-axis turning machines requiring precision left-hand orientation lines.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S25S-SSSCL09 boring bar with the appropriate BEYOND insert grade to maximize tool life and master chip breakages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Stacked with nano-layered TiAlN coatings. Perfect for sticky alloy steels and 304\/316 stainless steel by preventing built-up edges (BUE).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Features thick multi-layer Al2O3 + TiN coating lines. Fully optimized for high-velocity, continuous roughing passes on carbon and low-alloy structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. The premium choice for high-speed internal turning on grey and ductile cast iron shells.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eBEYOND engineering prioritizes dimensional absolute rigidity. The S25S-SSSCL09 undergoes rigorous multi-axis automated induction hardening and automated pocket milling. By locking insert seat tolerances down within a strict ±0.01mm limit, we eliminate micro-movements under heavy impact. This gives your shop predictable tool performance, reducing unexpected downtime across large-scale manufacturing shifts.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Flawless left-hand execution, extremely stiff\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe needed a left-hand 25mm bar for a back-boring cycle on tough chrome-moly parts. This BEYOND bar performed flawlessly. Zero chatter marks inside the 45mm bore even at 3xD depth. The insert pocket is machined beautifully.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Marcus T., Machine Shop Owner (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Perfekte Linksausführung für unsere Werkstatt\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eHervorragende Qualität. Der 25mm Schaft passt perfekt in unsere Mazak-Aufnahme. Wir nutzen die SCMT 09T3 Platten und der Spanbruch bei C45 Stahl ist absolut sauber. Keine lästigen Fließspäne mehr.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Dieter K., Senior Operator (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo stelo, finitura eccellente\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eHardened very well. The screw threads don't wear out even after constant insert indexing under dirty coolant conditions. Very stable left-hand internal profiling tool.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Giovanni F., CNC Turning Specialist (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"左手勝手の内径ボーリングで最高の安定性\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e逆転主軸加工用に導入しました。25mmの鋼シャンクですが、剛性が非常に高く、突出し量を最大にしてもビビリが一切出ません。SCMT正方形チップの4コーナーを余すことなく使えるため非常に経済的です。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Satoshi N., Manufacturing Engineer (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Excellent chip clearance on blind holes\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe low-profile Torx screw gives great chip clearance space. Paired with a ground BEYOND aluminum insert, it turns internal brass and non-ferrous housings with mirror finishes.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Liam O., Production Supervisor (Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the primary difference between S25S-SSSCR09 and S25S-SSSCL09?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The fundamental difference is the tool cutting direction. The SSSCR09 is a Right-Hand tool holder, whereas the \u003cstrong\u003eSSSCL09 is a Left-Hand (L) tool holder\u003c\/strong\u003e. Left-hand boring bars are required for specialized CNC sub-spindles, reverse spindle rotations, or back-boring operations moving from the inside out.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the minimum internal diameter required to use this boring bar safely?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The absolute minimum safe bore diameter (D-min) is \u003cstrong\u003e32mm (1.26 inches)\u003c\/strong\u003e. If you attempt to operate this 25mm tool bar inside a bore smaller than 32mm, the back heel of the left-handed steel head will scrape against the internal wall, ruining your workpiece surface finish and overloading the cutting edge.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I mount SCMT 1204 inserts into this tool pocket?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: No, this tool holder is custom-milled exclusively for \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e inserts (9.525mm \/ 3\/8\" inscribed circle). If your application demands the larger SCMT 1204 profile inserts, you must purchase our 12-size specialized boring bar series.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In traditional North American imperial machinists' blueprints, this 25mm metric tool holder acts as a high-strength direct alternative for standard 1-inch diameter left-hand indexable boring bars carrying size 3-2.5 square inserts (commonly cataloged as standard S16S-SSSCL3 models in US tool cribs).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Surface Vibrations \/ Micro-Chatter Marks:\u003c\/em\u003e Double-check that the tool's center height aligns perfectly with the lathe rotation centerline. For left-hand bars, a slight deflection above center can cause immediate heel rubbing. Ensure at least 3xD to 4xD length of the bar is clamped tightly in a high-accuracy split sleeve.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Rapid Edge Fracture \/ Chipping:\u003c\/em\u003e This typically indicates chip nesting in deep blind bores. Ensure heavy flood coolant or through-coolant pressure is pointing directly at the left-hand cutting pocket to force the broken chips outward.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Duplex (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618214052012,"sku":"S25S-SSSCL09","price":33.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S25S-SSSCL09_left_hand_internal_turning_boring_bar_25mm_solid_steel_shank_for_SCMT09T304_indexable_carbide_inserts_CNC_lathe_machining.jpg?v=1780801305"},{"product_id":"s25s-ssscr12-heavy-duty-boring-bar-tool-holder","title":"BEYOND S25S-SSSCR12 Heavy Duty Boring Bar | 25mm CNC Lathe Internal Turning Tool Holder for SCMT 1204 Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S25S-SSSCR12 Heavy Duty Boring Bar – 25mm High Rigidity Screw Clamping Internal Lathe Turning Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert shown seated on the tool head in our product photography is for structural demonstration purposes only. It is NOT included in the tool holder package. Please purchase your compatible right-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which heavy-duty indexable boring bar is best optimized for medium-diameter deep hole internal roughing and high-feed profiling using SCMT 1204 square inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S25S-SSSCR12\u003c\/strong\u003e is an industrial-grade, precision-engineered \u003cstrong\u003eSolid Alloy Steel Internal Turning Boring Bar\u003c\/strong\u003e developed specifically to bridge the gap between compact tool paths and heavy-duty stock removal. Featuring a rigid \u003cstrong\u003e25mm shank diameter\u003c\/strong\u003e and a \u003cstrong\u003e250mm standard length\u003c\/strong\u003e, this right-hand tool holder is structurally optimized to hold up against high cutting forces without geometric deflection. Unlike smaller holders, the S25S size is modified with an enlarged, heavy pocket head designed to host massive \u003cstrong\u003eSCMT 1204 \/ SCGT 1204\u003c\/strong\u003e (1\/2\" Inscribed Circle) square inserts, making it an exceptional performer for deep structural boring cycles on high-tensile steels and cast iron alloy structures.\u003c\/p\u003e\n\u003cp\u003eThe performance secret lies in the marriage of the tool's 75° approach angle and the robust cross-section of the SCMT 1204 square insert. The square insert shape yields a thick carbide substrate backbone that absorbs heavy mechanical shock. When paired with specialized ground-in positive rake chipbreaker geometries, it cleanly shears stringy metal layers. The optimized chip groove structure forces instant curling and fracturing of long ribbons into small, easily manageable chips, ensuring flawless chip evacuation through the internal bore exit and preventing catastrophic chip re-cutting errors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnlarged SCMT 1204 Pocket Head:\u003c\/strong\u003e Holds large 12mm-edge square carbide inserts, providing double the structural mass of 09-sized insert heads for high depth-of-cut (DOC) processing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Hardened Alloy Steel Shank:\u003c\/strong\u003e Quenched and tempered under precise thermal monitoring to ensure high surface hardness and outstanding vibration-damping properties.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Strategic Lead Angle:\u003c\/strong\u003e Minimizes radial push-off forces by directing cutting impact axially into the lathe spindle, dramatically reducing chatter marks on extended overhangs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Clamping Force Screw Lock:\u003c\/strong\u003e Employs a low-profile Torx screw lock layout that ensures unhindered chip flows while providing secure, movement-free insert retention during interrupted cuts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Reference\u003c\/h2\u003e\n\u003cp\u003eAccurate parameter verification is vital for flawless CNC code execution. Below is the structural decoding of the \u003cstrong\u003eS25S-SSSCR12\u003c\/strong\u003e standard international ISO designation rules:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e25\u003c\/strong\u003e25mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e250mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Direction\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e12\u003c\/strong\u003e12mm Edge Size\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e25 mm\u003c\/td\u003e\n\u003ctd\u003e0.9842 inches (Fits directly into standard 1\" turret blocks\/sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e250 mm\u003c\/td\u003e\n\u003ctd\u003e9.8425 inches (Optimized for deep internal cavity reach)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003ctd\u003e1.2598 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 1204xx \/ SCGT 1204xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 431 \/ SCMT 432 \/ SCMT 433 (1\/2\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM4.0 x 10\u003c\/td\u003e\n\u003ctd\u003eM4.0 x 0.3937 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e130 - 220 m\/min (426 - 721 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.15 - 0.45 mm\/rev (0.0059 - 0.0177 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Alloys (304, 316, 410)\u003c\/td\u003e\n\u003ctd\u003e80 - 150 m\/min (262 - 492 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.12 - 0.35 mm\/rev (0.0047 - 0.0137 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron \/ Nodular Iron Grades\u003c\/td\u003e\n\u003ctd\u003e100 - 180 m\/min (328 - 590 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.18 - 0.50 mm\/rev (0.0070 - 0.0196 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching heavy-feed turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT1204\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 1204 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e featuring reinforced cutting edges.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe unique balance of a 25mm mid-size shank with a large SCMT 12-size pocket turns the S25S-SSSCR12 into an internal roughing beast across multiple sectors:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedium-Scale Internal Rough Boring:\u003c\/strong\u003e Ideal for processing pre-drilled or cast holes starting from 32mm up to larger structural inner walls.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive \u0026amp; Mechanical Components:\u003c\/strong\u003e Heavily deployed in machining structural wheel hubs, custom drive-shaft sleeve cavities, and medium industrial valve linings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupted Cut Turning:\u003c\/strong\u003e The broad, heavy base of the SCMT 1204 insert corner handles structural interruptions (like keyways or oil ports) beautifully without chipping the carbide edge.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe ground 25mm cylindrical shank fits perfectly into standard metric turret tooling stations, VDI holders, and specialized boring bar sleeves. It is fully cross-compatible with 1-inch imperial tool slot systems using standard reduction adapters. It integrates flawlessly with global CNC lathes from brands like Haas (ST-20\/25), Mazak, Doosan\/DN Solutions, Okuma, and manual lathe quick-change tool posts tailored for high-accuracy right-hand cutting applications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S25S-SSSCR12 boring bar with the correct BEYOND insert grade to optimize tool life and secure optimal chip control:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Multi-layered TiAlN matrix built on a high-toughness substrate. Outstanding at resisting built-up edges (BUE) on heat-resistant alloys and 304\/316 stainless steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Features a specialized Al2O3 + TiN layered coating. Engineered for high-speed, continuous rough-to-medium turning cycles in hard carbon steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Offers superior abrasion resistance line profiles. The absolute top choice for machining grey and ductile cast irons with zero edge erosion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eAt BEYOND, we build for structural persistence. The S25S-SSSCR12 undergoes precision multi-stage induction hardening and computer-guided pocket milling. By maintaining strict ±0.01mm pocket seat boundaries, we eliminate insert micro-movements under intense tool pressure. This ensures predictable tool wear patterns, giving your CNC workshop maximum operational security and repeatable sizing across multi-shift batches.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"The best bar for taking deep cuts in small bores\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eMost 25mm bars only hold small inserts that break when you push them. This BEYOND bar holding a massive SCMT 1204 insert is a complete game-changer. I am pulling out 3mm of material per pass in 1045 steel with zero chatter. Highly recommended!\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Marcus J., Shop Foreman (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Absolut spitze für zähen Guss\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eDie S25S Bohrstange läuft auf unserer CNC-Drehmaschine absolut vibrationsfrei. Die SCMT 1204 Wendeplatten sitzen bombenfest in der gehärteten Tasche. Erstklassige Qualität aus dem Hause BEYOND.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Klaus W., Machinist Specialist (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottima rigidezza torsionale\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eUtensile robusto e preciso. Lo utilizziamo principalmente per la sbozzatura interna di manicotti metallici. Ottima evacuazione dei trucioli grazie al design ribassato della vite Torx.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Giordano P., CNC Technician (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"SCMT 1204が使える25mmシャンクで剛性最強です\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e内径の荒引き加工用に重宝しています。25mmシャンクでありながら、大型の12サイズチップが載るため刃先強度が抜群です。鋳物の断続切削でもチップが欠けることなく、安定して削り落とせます。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Kenji S., Production Engineer (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Punishing rougher with long pocket lifespan\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe run this bar setup daily on our Haas ST-20. The black oxide finish stands up well against aggressive synthetic water coolants. The insert seat stays square and sharp even after accidental overloads.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Brad D., Operations Manager (Canada)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Can I use SCMT 09T3 inserts on the BEYOND S25S-SSSCR12 boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: No, you cannot. This boring bar is exclusively designed with a larger pocket seat matching \u003cstrong\u003eSCMT 1204xx\u003c\/strong\u003e inserts (12mm cutting edge length). It cannot accept 09-sized inserts. If you need a bar for 09 size inserts, please review our S25S-SSSCR09 tool holder options instead.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the absolute minimum bore entry diameter for this tool bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The absolute minimum safe entry bore diameter (D-min) is \u003cstrong\u003e32mm (1.26 inches)\u003c\/strong\u003e. Due to the reinforced tool head carrying the massive SCMT 12 insert, entering any bore smaller than 32mm will cause the tool's heel steel structure to rub against the internal diameter wall, degrading surface quality or cracking the insert.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the maximum recommended overhang for this solid steel tool bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: For high-rigidity solid steel shanks like the S25S, the ideal operating overhang ratio is within \u003cstrong\u003e3 times the diameter (3xD)\u003c\/strong\u003e, which equals a maximum overhang depth of roughly 75mm. Extending past 4xD depth can trigger vibration frequencies, requiring a reduction in cutting speed or feed values.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e In standard North American imperial tooling structures, this 25mm metric tool holder acts as a high-strength direct alternative for standard 1-inch diameter indexable boring bars running size 4-3 square carbide inserts (frequently cataloged as S16S-SSSCR4 configurations in US tool rooms).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Severe Surface Chatter Marks \/ Piercing Squeal:\u003c\/em\u003e Check that the center height of your tool tip is exactly parallel with the spindle rotation centerline. Additionally, make sure your tool clamp length is at least 3 to 4 times the shank diameter inside the turret split sleeve block.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Chip Nesting \/ Long Stringy Ribbon Formation:\u003c\/em\u003e The large SCMT 1204 insert needs adequate cutting pressure to engage its chipbreaker groove. Try increasing your feed rate (f) slightly or choosing an insert chip groove designed specifically for medium-to-rough profiling arrays.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Structural Alloy Steels (Fully Optimized)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys \u0026amp; Alloys Duplex (Highly Suitable)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast Iron, Grey \u0026amp; Ductile Formulations (Excellent Wear Lifetime)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Metals \u0026amp; Aluminum Alloys (Compatible with Ground\/Polished SCGT Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618215657644,"sku":"S25S-SSSCR12","price":34.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S25S-SSSCR12_heavy_duty_internal_turning_boring_bar_25mm_solid_steel_shank_for_SCMT120408_indexable_carbide_inserts_CNC_lathe_machining.jpg?v=1780730714"},{"product_id":"s32t-ssscr09-heavy-duty-boring-bar-tool-holder","title":"BEYOND S32T-SSSCR09 Heavy Duty Boring Bar | 32mm CNC Lathe Internal Turning Tool Holder for SCMT Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S32T-SSSCR09 Heavy Duty Internal Boring Bar – 32mm High Rigidity Screw Clamping Lathe Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert shown seated on the tool head in our product photography is for structural demonstration purposes only. It is NOT included in the tool holder package. Please purchase your compatible right-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which heavy-duty boring bar is best optimized for high-depth internal roughing and profiling of forged steel blocks using SCMT square inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S32T-SSSCR09\u003c\/strong\u003e is an industrial-grade, ultra-robust \u003cstrong\u003eSolid Alloy Steel Internal Turning Boring Bar\u003c\/strong\u003e engineered specifically to survive high torsional stress and prevent structural harmonics in large-diameter internal CNC lathe machining operations. With its massive \u003cstrong\u003e32mm shank diameter\u003c\/strong\u003e and a \u003cstrong\u003e300mm extended length\u003c\/strong\u003e, this tool holder delivers an outstanding balance of raw structural mass and vibration damping. It is purpose-built to execute aggressive internal boring, facing, and profiling cycles inside large cavities where standard smaller bars immediately bend or chatter under load.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder utilizes standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e indexable square inserts. By utilizing a 90-degree square insert configuration with a 75° approach angle, it distributes cutting forces optimally along both the axial and radial axes. When fitted with micro-grain carbide substrates featuring ground-in positive rake chipbreaker geometries, it cleanly shears tough workpiece materials. The engineered chip groove structure forces rapid segmenting of thick ribbons into small, tight curls, eliminating dangerous \"bird-nesting\" inside deep bores and ensuring a clean evacuation path on steels, cast iron, and exotic alloys.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty 32mm Steel Shank:\u003c\/strong\u003e Provides an immense moment of inertia, resisting high cutting pressure during heavy stock removal without geometric deflection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Tensile Alloy Matrix:\u003c\/strong\u003e Quenched and tempered to precision industrial hardness thresholds, minimizing tool wear and ensuring long-lasting pocket alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Lead Angle Architecture:\u003c\/strong\u003e Specially optimized for heavy internal longitudinal boring, counterboring steps, and multi-pass roughing runs without dragging the tool body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreamlined Screw-Down Clamp System:\u003c\/strong\u003e Uses an inset Torx screw configuration to maintain maximum clearance for thick chips to escape smoothly through the bore opening.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Reference\u003c\/h2\u003e\n\u003cp\u003eAccurate parameter verification is vital for flawless CNC code execution. Below is the structural decoding of the \u003cstrong\u003eS32T-SSSCR09\u003c\/strong\u003e standard international ISO designation rules:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e32\u003c\/strong\u003e32mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eT\u003c\/strong\u003e300mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003eRight-Hand Direction\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003ctd\u003e1.2598 inches (Fits directly into 1-1\/4\" turret blocks\/sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 mm\u003c\/td\u003e\n\u003ctd\u003e11.8110 inches (Ideal for high-overhang boring depth)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 mm\u003c\/td\u003e\n\u003ctd\u003e1.5748 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e140 - 240 m\/min (459 - 787 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.12 - 0.35 mm\/rev (0.0047 - 0.0137 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e90 - 160 m\/min (295 - 525 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.28 mm\/rev (0.0039 - 0.0110 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e110 - 200 m\/min (360 - 656 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.15 - 0.40 mm\/rev (0.0059 - 0.0157 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching heavy-duty turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized roughing chipbreaker matrices.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe heavy 32mm build of the S32T-SSSCR09 makes it the default solution for aggressive metal removal inside wide, deep internal cavities:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy Duty Machinery \u0026amp; Equipment:\u003c\/strong\u003e Perfect for machining internal bearing blocks, heavy hydraulic cylinders, and large structural gear hubs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil, Gas \u0026amp; Energy Sectors:\u003c\/strong\u003e Ideal for boring high-tensile pipe connectors, valve housings, and flange tubes that demand strict dimensional tolerances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupted Cut Internal Roughing:\u003c\/strong\u003e The square insert base distributes heavy axial impact stresses evenly, making it excellent for boring out pre-cast or slotted interior walls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe precision-ground 32mm cylindrical base fits securely into standard large CNC turret blocks, boring bar reduction sleeves, and heavy-duty manual lathe quick-change toolposts. It integrates seamlessly with major global turning centers including Haas (ST-30\/40), Mazak Quick Turn, Doosan\/DN Solutions Puma series, Okuma, Mori Seiki, and various large-capacity European or Asian horizontal lathe arrays configured for 32mm tool baselines. Optimized for right-hand operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S32T-SSSCR09 boring bar with the correct BEYOND insert grade to maximize tool life and secure optimal chip control:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Built with an advanced nano-layered TiAlN matrix. Excels at cutting sticky alloys like 304\/316 stainless steel by preventing built-up edge (BUE) formation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Features thick multi-layer Al2O3 + TiN coating lines. Highly optimized for stable, high-velocity continuous roughing cycles on carbon and structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. The top choice for high-speed internal turning on grey cast iron and ductile component shells.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eBEYOND engineering focuses on rigidity. The S32T-SSSCR09 is manufactured via multi-axis automated grinding lines to ensure the pocket seat angle remains perfectly accurate at 75 degrees. By controlling pocket tolerances within a strict ±0.01mm window, we minimize insert center line variance, allowing machine shops to hold tight limits over large batch production runs.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Massive steel bar, absolutely zero chatter\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWe were boring out forged 4140 rings at 3xD depth. Standard bars screeched like crazy. This 32mm SSSCR bar paired with a BEYOND roughing insert chewed through the stock effortlessly. Surface finish looks excellent.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Dave M., Lead Machinist (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Extrem stabil auf unserer Mazak\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eDer 32mm Schaft sitzt bombenfest. Wir nutzen die SCMT-Platten für zähen Edelstahl. Der Spanbruch klappt hervorragend, keine langen Spänekneuel mehr in der Bohrung.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Holger B., Production Manager (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Ottimo corpo utensile per sgrossatura pesante\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eThe screw seat is hardened perfectly and doesn't strip under load. We process large cast iron housings. The tool absorbs all vibrations, keeping the insert corners crisp for a longer time.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Vincenzo G., CNC Workshop Supervisor (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"剛性が素晴らしい。高送りでも安定しています\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e大型の油圧シリンダ内径加工用に購入。32mm径の鋼シャングなので、突出し量を長めに設定してもビビりが発生しません。SCMT正方形チップの4コーナーをフルに使えるのでコストも大幅に削減できました。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Takashi H., Senior Manufacturing Specialist (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Flawless insert retention under heavy cuts\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eTakes deep depths of cut without pulling away from the part line. The black oxide treatment preserves the bar from rust even when subjected to heavy high-pressure water-soluble coolants.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Ethan R., Operations Director (Canada)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What insert style does the BEYOND S32T-SSSCR09 tool holder use?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: It is specifically engineered for standard \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e indexable square inserts (9.525mm\/3\/8\" inscribed circle size). The square geometry gives you 4 cutting edges per insert, delivering highly cost-effective heavy-duty roughing and finishing cycles.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the minimal internal bore entry clearance for this 32mm tool?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The absolute minimum safe bore entry diameter (D-min) is 40mm (1.57 inches). Running this tool holder inside any internal diameter below 40mm will cause the back heel of the profiling head to rub against the internal bore walls, destroying the surface finish and fracturing the insert's cutting edge.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: Why should I choose a steel shank S32T over a carbide-shank boring bar?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: Steel shanks like the S32T offer superb structural resilience and cost-efficiency for overhang ratios up to 3xD to 4xD depth. For deeper boring ratios exceeding 5xD depth, ultra-dense solid carbide shanks are typically recommended to manage elasticity.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e For workshops balancing metric machine layouts with imperial blueprints, this 32mm tool holder serves as an ultra-stiff direct functional replacement for 1-1\/4 inch diameter indexable boring bars running size 3-2.5 square inserts (designated as S20T-SSSCR3 configurations in standard US systems).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Surface Vibration Marks \/ Harmonic Screeching:\u003c\/em\u003e Verify that your tool's overhang does not exceed 3 times the shank diameter (approx. 96mm). If your part requires deeper reach, consider lowering your cutting speed (Vc) slightly while increasing the feed rate (f) to force the tool into a stable cut.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Short Insert Lifetime \/ Rapid Edge Breakdown:\u003c\/em\u003e This is often caused by micro-chips re-cutting inside deep blind holes. Ensure your coolant lines deliver a high-pressure flow directly into the cutting zone to flush out chip fragments immediately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618218606764,"sku":"S32T-SSSCR09","price":55.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S32T-SSSCR09_heavy_duty_internal_turning_boring_bar_32mm_solid_steel_shank_for_SCMT09T304_indexable_carbide_inserts_CNC_lathe_machining.jpg?v=1780730473"},{"product_id":"s32t-ssscl09-boring-bar-tool-holder","title":"BEYOND S32T-SSSCL09 Left Hand Heavy Duty Boring Bar | 32mm CNC Lathe Internal Turning Tool Holder for SCMT Inserts","description":"\u003cstyle\u003e\n  .beyond-container {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #333333;\n    line-height: 1.6;\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 15px;\n    box-sizing: border-box;\n  }\n  *, *::before, *::after {\n    box-sizing: border-box;\n  }\n  .beyond-h1-holder {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 24px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n  }\n  .beyond-h1-holder h1 {\n    margin: 0;\n    font-size: 24px;\n    font-weight: 700;\n    text-transform: uppercase;\n    letter-spacing: 0.5px;\n    color: #ffffff;\n  }\n  .beyond-section {\n    margin-bottom: 35px;\n  }\n  .beyond-section h2 {\n    color: #47479F;\n    border-left: 5px solid #47479F;\n    padding-left: 12px;\n    font-size: 20px;\n    margin-bottom: 15px;\n    font-weight: 600;\n  }\n  .beyond-section h3 {\n    color: #333333;\n    font-size: 16px;\n    margin-top: 20px;\n    margin-bottom: 10px;\n    font-weight: 600;\n  }\n  .beyond-alert-box {\n    background-color: #fff3cd;\n    border: 1px solid #ffeeba;\n    color: #856404;\n    padding: 15px;\n    border-radius: 6px;\n    margin-bottom: 25px;\n    font-weight: bold;\n    font-size: 14px;\n  }\n  .beyond-grid-box {\n    border: 2px solid #47479F;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 25px;\n    background-color: #fcfcfd;\n  }\n  .beyond-code-breakdown {\n    text-align: left;\n    margin-top: 15px;\n  }\n  .beyond-code-letter {\n    border: 1px solid #47479F;\n    border-radius: 4px;\n    padding: 10px;\n    width: 135px;\n    display: inline-block;\n    vertical-align: top;\n    margin: 5px;\n    background-color: #ffffff;\n    text-align: center;\n  }\n  .beyond-code-letter strong {\n    color: #47479F;\n    font-size: 18px;\n    display: block;\n    border-bottom: 1px solid #e0e0e0;\n    padding-bottom: 5px;\n    margin-bottom: 5px;\n  }\n  .beyond-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin: 15px 0;\n  }\n  .beyond-table {\n    width: 100%;\n    border-collapse: collapse;\n    min-width: 600px;\n  }\n  .beyond-table th, .beyond-table td {\n    border: 1px solid #dddddd;\n    padding: 12px;\n    text-align: left;\n    font-size: 14px;\n  }\n  .beyond-table th {\n    background-color: #47479F;\n    color: white;\n    font-weight: 600;\n  }\n  .beyond-table tr:nth-child(even) {\n    background-color: #f8f9fa;\n  }\n  .beyond-review-card {\n    border: 1px solid #e0e0e0;\n    border-radius: 6px;\n    padding: 15px;\n    margin-bottom: 15px;\n    background-color: #ffffff;\n    box-shadow: 0 2px 4px rgba(0,0,0,0.02);\n  }\n  .beyond-stars {\n    color: #ffc107;\n    margin-bottom: 5px;\n    font-size: 14px;\n  }\n  .beyond-review-meta {\n    font-size: 12px;\n    color: #777777;\n    margin-top: 5px;\n  }\n  .beyond-faq-item {\n    background-color: #f8f9fa;\n    border-left: 4px solid #47479F;\n    padding: 15px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .beyond-faq-q {\n    font-weight: bold;\n    color: #47479F;\n    margin-bottom: 5px;\n  }\n  .beyond-badge-container {\n    margin-top: 15px;\n  }\n  .beyond-badge {\n    display: inline-block;\n    background-color: #47479F;\n    color: white;\n    padding: 6px 12px;\n    border-radius: 20px;\n    font-size: 13px;\n    font-weight: 500;\n    margin: 4px;\n  }\n  .beyond-footer-panel {\n    border-top: 1px solid #e0e0e0;\n    padding-top: 25px;\n    margin-top: 30px;\n  }\n  @media (max-width: 768px) {\n    .beyond-h1-holder h1 { font-size: 20px; }\n    .beyond-section h2 { font-size: 18px; }\n    .beyond-code-letter { width: 45%; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"beyond-container\"\u003e\n\u003cdiv class=\"beyond-h1-holder\"\u003e\n\u003ch1\u003eBEYOND S32T-SSSCL09 Left Hand Heavy Duty Boring Bar – 32mm High Rigidity Screw Clamping Lathe Tool Holder\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-alert-box\"\u003e⚠️ PLEASE NOTE: The indexable carbide insert shown seated on the tool head in our product photography is for structural demonstration purposes only. It is NOT included in the tool holder package. Please purchase your compatible left-hand or neutral inserts separately.\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003e\"Which left-hand heavy-duty boring bar is best optimized for internal roughing and profiling of forged steel sleeves using SCMT square inserts?\"\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND S32T-SSSCL09\u003c\/strong\u003e is an industrial-grade, ultra-robust \u003cstrong\u003eSolid Alloy Steel Left-Hand Internal Turning Boring Bar\u003c\/strong\u003e engineered specifically to survive high torsional stress and prevent structural harmonics in large-diameter internal CNC lathe machining operations. With its massive \u003cstrong\u003e32mm shank diameter\u003c\/strong\u003e and a \u003cstrong\u003e300mm extended length\u003c\/strong\u003e, this tool holder delivers an outstanding balance of raw structural mass and vibration damping. It is purpose-built to execute aggressive counter-clockwise internal boring, facing, and profiling cycles inside large cavities where standard smaller bars immediately bend or chatter under load.\u003c\/p\u003e\n\u003cp\u003eThis premium tool holder utilizes standard \u003cstrong\u003eSCMT 09T3 \/ SCGT 09T3\u003c\/strong\u003e indexable square inserts. By utilizing a 90-degree square insert configuration with a 75° approach angle, it distributes cutting forces optimally along both the axial and radial axes. When fitted with micro-grain carbide substrates featuring ground-in positive rake chipbreaker geometries, it cleanly shears tough workpiece materials. The engineered chip groove structure forces rapid segmenting of thick ribbons into small, tight curls, eliminating dangerous \"bird-nesting\" inside deep bores and ensuring a clean evacuation path on steels, cast iron, and exotic alloys.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e2. Product Core Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty 32mm Left-Hand Steel Shank:\u003c\/strong\u003e Ground to precise tolerances to provide maximum surface contact with the tool turret, absorbing severe cutting impact in counter-spindle configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Tensile Alloy Matrix:\u003c\/strong\u003e Quenched and tempered to precision industrial hardness thresholds, minimizing tool wear and ensuring long-lasting pocket alignment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75° Lead Angle Architecture:\u003c\/strong\u003e Specially optimized for heavy internal longitudinal boring, counterboring steps, and multi-pass roughing runs without dragging the tool body.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStreamlined Screw-Down Clamp System:\u003c\/strong\u003e Uses an inset Torx screw configuration to maintain maximum clearance for thick chips to escape smoothly through the bore opening.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e3. Technical Specifications \u0026amp; Metric\/Imperial Reference\u003c\/h2\u003e\n\u003cp\u003eAccurate parameter verification is vital for flawless CNC code execution. Below is the structural decoding of the \u003cstrong\u003eS32T-SSSCL09\u003c\/strong\u003e standard international ISO designation rules:\u003c\/p\u003e\n\u003cdiv class=\"beyond-grid-box\"\u003e\n\u003cdiv style=\"font-weight: bold; color: #47479f; margin-bottom: 10px;\"\u003eISO Nomenclature Verification Structure:\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-breakdown\"\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSteel Shank\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e32\u003c\/strong\u003e32mm Diameter\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eT\u003c\/strong\u003e300mm Length\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eScrew Lock System\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003eSquare Insert\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e75° Approach\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eC\u003c\/strong\u003e7° Clearance\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003eLeft-Hand Orientation\u003c\/div\u003e\n\u003cdiv class=\"beyond-code-letter\"\u003e\n\u003cstrong\u003e09\u003c\/strong\u003e9.525mm Edge\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter Dimension\u003c\/th\u003e\n\u003cth\u003eMetric System Specification\u003c\/th\u003e\n\u003cth\u003eImperial Equivalent Measurement\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShank Diameter (d)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e32 mm\u003c\/td\u003e\n\u003ctd\u003e1.2598 inches (Fits directly into 1-1\/4\" turret blocks\/sleeves)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTotal Tool Length (L)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e300 mm\u003c\/td\u003e\n\u003ctd\u003e11.8110 inches (Ideal for high-overhang boring depth)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Bore Diameter (D-min)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 mm\u003c\/td\u003e\n\u003ctd\u003e1.5748 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible Carbide Insert Layout\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSCMT 09T3xx \/ SCGT 09T3xx\u003c\/td\u003e\n\u003ctd\u003eSCMT 3(2.5)1 \/ SCMT 3(2.5)2 (3\/8\" IC Square Size)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eClamping Screw Model Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 9.0\u003c\/td\u003e\n\u003ctd\u003eM3.5 x 0.3543 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTorx Key Driver Wrench Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eT15\u003c\/td\u003e\n\u003ctd\u003eT15 Torx Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Technical Machining Parameters (Speed \u0026amp; Feed Guide)\u003c\/h3\u003e\n\u003cdiv class=\"beyond-table-wrapper\"\u003e\n\u003ctable class=\"beyond-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material Classification\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc) Range\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f) Per Revolution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon Steel \/ Alloy Steel (HB180-280)\u003c\/td\u003e\n\u003ctd\u003e140 - 240 m\/min (459 - 787 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.12 - 0.35 mm\/rev (0.0047 - 0.0137 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStainless Steel Matrix (304, 316, 420)\u003c\/td\u003e\n\u003ctd\u003e90 - 160 m\/min (295 - 525 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.28 mm\/rev (0.0039 - 0.0110 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCast Iron Grades (GG25, GGG40)\u003c\/td\u003e\n\u003ctd\u003e110 - 200 m\/min (360 - 656 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.15 - 0.40 mm\/rev (0.0059 - 0.0157 IPR)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border-style: dashed; background-color: #f4f4fa; text-align: center; padding: 15px;\" class=\"beyond-grid-box\"\u003e🔗 Need matching left-hand turning inserts? \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=SCMT09T3\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003e\u003cu\u003eClick here to shop BEYOND Original SCMT 09T3 Carbide Inserts\u003c\/u\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e \u003c\/a\u003ewith optimized roughing chipbreaker matrices.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp\u003eThe heavy 32mm left-hand build of the S32T-SSSCL09 makes it the default solution for aggressive metal removal inside wide, deep internal cavities:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeft-Hand \u0026amp; Counter-Spindle CNC Lathes:\u003c\/strong\u003e Specifically configured for reverse rotation machining spindles or back-side internal turning applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy Duty Machinery Components:\u003c\/strong\u003e Perfect for machining large internal bearing housings, industrial pump casings, and mining gear assemblies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupted Cut Internal Roughing:\u003c\/strong\u003e The square insert base distributes heavy axial impact stresses evenly, making it excellent for boring out pre-cast or slotted interior walls.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e5. Compatibility \u0026amp; Equipment Interface\u003c\/h2\u003e\n\u003cp\u003eThe precision-ground 32mm cylindrical base fits securely into standard large CNC turret blocks, boring bar reduction sleeves, and heavy-duty manual lathe quick-change toolposts. It integrates seamlessly with major global turning centers including Haas (ST-30\/40), Mazak Quick Turn, Doosan\/DN Solutions Puma series, Okuma, Mori Seiki, and various large-capacity European or Asian horizontal lathe arrays configured for 32mm tool baselines. Optimized for left-hand operation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e6. BEYOND Premium Substrate \u0026amp; Grade Selection Matrix\u003c\/h2\u003e\n\u003cp\u003ePair your S32T-SSSCL09 boring bar with the correct BEYOND insert grade to maximize tool life and secure optimal chip control:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM11 Grade (PVD Coated Substrate):\u003c\/strong\u003e Built with an advanced nano-layered TiAlN matrix. Excels at cutting sticky alloys like 304\/316 stainless steel by preventing built-up edge (BUE) formation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYM25 Grade (Premium CVD Dual-Coated):\u003c\/strong\u003e Features thick multi-layer Al2O3 + TiN coating lines. Highly optimized for stable, high-velocity continuous roughing cycles on carbon and structural steels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBYK15 Grade (Ultra-Dense Micro-Grain):\u003c\/strong\u003e Formulated for maximum abrasive wear resistance. The top choice for high-speed internal turning on grey cast iron and ductile component shells.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e7. Why Choose BEYOND Tooling Systems\u003c\/h2\u003e\n\u003cp\u003eBEYOND engineering focuses on rigidity. The S32T-SSSCL09 is manufactured via multi-axis automated grinding lines to ensure the pocket seat angle remains perfectly accurate at 75 degrees. By controlling pocket tolerances within a strict ±0.01mm window, we minimize insert center line variance, allowing machine shops to hold tight limits over large batch production runs.\u003c\/p\u003e\n\u003ch3 style=\"color: #47479f; margin-top: 20px;\"\u003eGlobal Machinist Field Reports:\u003c\/h3\u003e\n\u003cdiv class=\"beyond-review-container\"\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Flawless performance on our back spindle setup\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eFinding high-quality 32mm left-hand bars can be tough. This BEYOND bar solved all our vibration issues on the counter spindle. Running SCMT inserts with a 0.4mm nose radius, the surface finish is completely chatter-free.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Robert H., Lead CNC Programmer (United States)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Sehr robuster linker Bohrstange\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eWir nutzen diese 32mm SSSCL Bohrstange auf einer großen DMG Mori. Die Passung der SCMT-Wendeplatten ist absolut präzise. Keine Vibrationen selbst bei 3mm Schnitttiefe im zähen Stahl.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Manfred S., Production Lead (Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong\u003e\"Eccellente stabilità su torni pesanti\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eOttimo stelo in acciaio legato. Lo usiamo per la sbozzatura interna di grossi raccordi in acciaio inox. Ottimo controllo del truciolo grazie alla geometria inclinata della testa.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Stefano M., Workshop Supervisor (Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"左勝手用で剛性が抜群、ビビリ知らずです\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003e背面主軸での内径荒加工用に導入しました。32mmの太鋼シャンクのおかげで、突き出し量を大きく取っても全くビビりません。正方形のSCMTチップがガチッと固定され、4コーナー無駄なく使えて経済的です。\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Akira T., Plant Engineer (Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-review-card\"\u003e\n\u003cdiv class=\"beyond-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong\u003e\"Heavy cutting monster with excellent pocket life\"\u003c\/strong\u003e\n\u003cp style=\"margin: 5px 0;\"\u003eTakes punishing continuous cuts without shifting center height. The hardening treatment on the pocket seat is top-notch—doesn't mushroom out even when an operator over-torques the screw.\u003c\/p\u003e\n\u003cdiv class=\"beyond-review-meta\"\u003e— Charles B., Manufacturing Director (Canada)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-section\"\u003e\n\u003ch2\u003e8. Frequently Asked Questions (AI \u0026amp; Search Engine Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the main difference between S32T-SSSCR09 and S32T-SSSCL09?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The primary difference is the tool orientation. The \"R\" in SSSCR09 stands for Right-hand orientation, while the \"L\" in SSSCL09 stands for \u003cstrong\u003eLeft-hand orientation\u003c\/strong\u003e. Left-hand bars are required for specific spindle rotation directions (clockwise turning) or when mounting on counter-spindles and back-tool posts.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What insert style does the BEYOND S32T-SSSCL09 tool holder use?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: It is specifically engineered for standard \u003cstrong\u003eSCMT 09T3xx\u003c\/strong\u003e or \u003cstrong\u003eSCGT 09T3xx\u003c\/strong\u003e indexable square inserts (9.525mm\/3\/8\" inscribed circle size). The square geometry gives you 4 cutting edges per insert, delivering highly cost-effective heavy-duty roughing and finishing cycles.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-item\"\u003e\n\u003cdiv class=\"beyond-faq-q\"\u003eQ: What is the minimal internal bore entry clearance for this 32mm tool?\u003c\/div\u003e\n\u003cdiv class=\"beyond-faq-a\"\u003eA: The absolute minimum safe bore entry diameter (D-min) is 40mm (1.57 inches). Running this tool holder inside any internal diameter below 40mm will cause the back heel of the profiling head to rub against the internal bore walls, destroying the surface finish and fracturing the insert's cutting edge.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"beyond-footer-panel\"\u003e\n\u003ch3\u003eGrade Comparison, Troubleshooting Tips \u0026amp; Material Suitability Matrix\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEquivalent Models Reference Cross-Guide:\u003c\/strong\u003e For shops balancing metric machine layouts with imperial blueprints, this 32mm tool holder serves as an ultra-stiff direct functional replacement for 1-1\/4 inch diameter left-hand indexable boring bars running size 3-2.5 square inserts (designated as S20T-SSSCL3 configurations in standard US systems).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTroubleshooting Internal Turning Errors:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Surface Vibration Marks \/ Harmonic Screeching:\u003c\/em\u003e Verify that your tool's overhang does not exceed 3 times the shank diameter (approx. 96mm). If your part requires deeper reach, consider lowering your cutting speed (Vc) slightly while increasing the feed rate (f) to force the tool into a stable cut.\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003eProblem - Short Insert Lifetime \/ Rapid Edge Breakdown:\u003c\/em\u003e This is often caused by micro-chips re-cutting inside deep blind holes. Ensure your coolant lines deliver a high-pressure flow directly into the cutting zone to flush out chip fragments immediately.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWorkpiece Material Suitability Matrix:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"beyond-badge-container\"\u003e\n\u003cdiv class=\"beyond-badge\"\u003eP - Carbon \u0026amp; Alloy Steels (Fully Optimized Setup)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eM - Stainless Steel Alloys (Highly Suitable Application)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eK - Cast and Ductile Irons (Excellent Wear Resistance)\u003c\/div\u003e\n\u003cdiv class=\"beyond-badge\"\u003eN - Non-Ferrous Alloys \u0026amp; Aluminum (Compatible with Ground\/Polished Inserts)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43618220572844,"sku":"S32T-SSSCL09","price":55.19,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S32T-SSSCL09_heavy_duty_left_hand_internal_turning_boring_bar_32mm_solid_steel_shank_for_SCMT09T304_indexable_carbide_inserts_CNC_lathe_machining.jpg?v=1780730220"}],"url":"https:\/\/cnchome-beyond.com\/collections\/sc-insert-internal.oembed?page=2","provider":"CNCHome-Beyond","version":"1.0","type":"link"}