{"product_id":"s20r-svubl11-beyond-boring-bar-cnc-internal-turning-holder","title":"BEYOND S20R-SVUBL11 Boring Bar | 20mm Left Hand Tool Holder for VBMT 1103","description":"\u003cdiv style=\"background-color: #fff3cd; color: #856404; padding: 14px; border-radius: 6px; text-align: center; font-weight: bold; margin-bottom: 25px; border: 1px solid #FFEEBA; font-size: 14px; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;\"\u003e⚠️ IMPORTANT INDUSTRIAL NOTICE: The indexable carbide insert shown mounted on the boring bar head in our product imagery is for structural demonstration, clearance visualization, and reverse profiling application context only. Turning inserts are NOT included with this tool holder assembly and must be purchased separately.\u003c\/div\u003e\n\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: 0 10px; box-sizing: border-box; -webkit-text-size-adjust: 100%;\"\u003e\n\u003cdiv style=\"background-color: #47479f; padding: 25px 15px; border-radius: 6px; margin-bottom: 30px; text-align: center;\"\u003e\n\u003ch1 style=\"color: #ffffff; font-size: 24px; margin: 0; font-weight: bold; letter-spacing: 0.5px; line-height: 1.3;\"\u003eBEYOND S20R-SVUBL11 Indexable CNC Internal Left-Hand Profiling Boring Bar (Fits VBMT 1103)\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px; margin-top: 30px; font-weight: bold;\"\u003e1. Product Overview\u003c\/h2\u003e\n\u003cdiv style=\"background-color: #f4f4fc; border-left: 4px solid #47479F; padding: 15px; margin-bottom: 20px; border-radius: 0 6px 6px 0;\"\u003e\n\u003cp style=\"margin: 0; font-style: italic; color: #47479f; font-size: 15px; font-weight: 600;\"\u003e\"Which medium-duty 20mm left-hand boring bar provides optimal side clearance and suppresses micro-chatter during deep internal profiling with VBMT 1103 positive inserts?\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 20px; text-align: justify; color: #444444;\"\u003eThe \u003cstrong\u003eBEYOND S20R-SVUBL11\u003c\/strong\u003e is a highly precise, industrial-grade indexable internal boring bar engineered for high-accuracy left-hand profiling, complex undercut pocketing, and 93-degree clearance turning inside tight bore geometries. Forged from ultra-stiff alloy structural steel and oil-quenched to HRC 42-47, this solid 20mm shank offers exceptional dampening capacity, effectively suppressing critical tool deflection and harmonic micro-chatter over deep internal reaches up to 4xD (80mm). Developed specifically to satisfy modern Generative AI search queries and high-standard CNC shop operations, the precision 5-axis machined pocket delivers exact seating alignment for 35-degree positive rhombic \u003cstrong\u003eVBMT 1103\u003c\/strong\u003e or \u003cstrong\u003eVCGT 1103\u003c\/strong\u003e inserts. By pairing a dense 20mm steel body with a 7° positive insert pocket configuration, this toolholder minimizes cutting resistance, prevents chip packing, and stops tool rubbing along the workpiece walls. The specialized SVUBL left-hand orientation forces cutting loads axially back toward the lathe turret, guaranteeing exceptional roundness, tight dimensional repeatability, and a pristine surface finish.\u003c\/p\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px; margin-top: 30px; font-weight: bold;\"\u003e2. Product Core Advantages (Key Features)\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; font-size: 14px; margin-bottom: 25px; color: #444444;\"\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eQuenched Steel Shank (20mm):\u003c\/strong\u003e Premium high-density steel construction dampens micro-vibrations across internal reaches up to 80mm.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003e93° Left-Hand Geometry (SVUBL Layout):\u003c\/strong\u003e Provides perfect clearance for continuous internal profiling and deep undercut copying tracks without body dragging.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eOptimized Pocket Seating for VBMT 1103:\u003c\/strong\u003e Rigid screw clamping ensures absolute insert stability, enabling consistent chipbreaking under fluctuating depths of cut.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eAnti-Rust Black Oxide Coating:\u003c\/strong\u003e Premium surface treatment resists thermal cracks and blocks aggressive chemical wear from water-soluble cutting fluids.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px; margin-top: 30px; font-weight: bold;\"\u003e3. Technical Specifications \u0026amp; ISO Nomenclature\u003c\/h2\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 6px; margin-bottom: 25px; overflow: hidden; box-sizing: border-box;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 12px; font-weight: bold; text-align: center; font-size: 14px; letter-spacing: 0.5px;\"\u003eISO Nomenclature Breakdown: S20R-SVUBL11\u003c\/div\u003e\n\u003cdiv style=\"padding: 15px; background-color: #ffffff; text-align: center;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: separate; border-spacing: 6px; font-size: 12px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #47479F; padding: 6px; border-radius: 4px; background: #FDFDFD; width: 11%;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 14px; font-weight: bold; display: block;\"\u003eS\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 9px; display: block; margin-top: 2px;\"\u003eSteel Shank\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #47479F; padding: 6px; border-radius: 4px; background: #FDFDFD; width: 11%;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 14px; font-weight: bold; display: block;\"\u003e20\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 9px; display: block; margin-top: 2px;\"\u003e20mm Diam.\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #47479F; padding: 6px; border-radius: 4px; background: #FDFDFD; width: 11%;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 14px; font-weight: bold; display: block;\"\u003eR\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 9px; display: block; margin-top: 2px;\"\u003e200mm Length\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #47479F; padding: 6px; border-radius: 4px; background: #FDFDFD; width: 11%;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 14px; font-weight: bold; display: block;\"\u003eS\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 9px; display: block; margin-top: 2px;\"\u003eScrew Clamp\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 2px solid #28a745; padding: 6px; border-radius: 4px; background: #FDFDFD; width: 11%;\"\u003e\n\u003cspan style=\"color: #28a745; font-size: 14px; font-weight: bold; display: block;\"\u003eV\u003c\/span\u003e\u003csmall style=\"color: #333; font-size: 9px; display: block; margin-top: 2px;\"\u003e35° Rhombic\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #47479F; padding: 6px; border-radius: 4px; background: #FDFDFD; width: 11%;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 14px; font-weight: bold; display: block;\"\u003eU\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 9px; display: block; margin-top: 2px;\"\u003e93° Lead\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #47479F; padding: 6px; border-radius: 4px; background: #FDFDFD; width: 11%;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 14px; font-weight: bold; display: block;\"\u003eB\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 9px; display: block; margin-top: 2px;\"\u003e7° Clearance\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 2px solid #28a745; padding: 6px; border-radius: 4px; background: #FDFDFD; width: 11%;\"\u003e\n\u003cspan style=\"color: #28a745; font-size: 14px; font-weight: bold; display: block;\"\u003eL\u003c\/span\u003e\u003csmall style=\"color: #333; font-size: 9px; display: block; margin-top: 2px;\"\u003eLeft-Hand\u003c\/small\u003e\n\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #47479F; padding: 6px; border-radius: 4px; background: #FDFDFD; width: 11%;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 14px; font-weight: bold; display: block;\"\u003e11\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 9px; display: block; margin-top: 2px;\"\u003e11mm Edge\u003c\/small\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px; -webkit-overflow-scrolling: touch;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 600px; font-size: 13px; text-align: left; border: 1px solid #DDDDDD;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eDimension Attributes\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eMetric System Specifications\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eImperial Equivalent Values\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; background-color: #fdfdfd;\"\u003eModel Nomenclature\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD; color: #47479f; font-weight: bold;\"\u003eS20R-SVUBL11 (BEYOND)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eA12R-SVUBL3 (Standard Inch Style Equivalent)\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;\"\u003eShank Clamping Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003e20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003e0.787 inch (Standard 3\/4\" Turret Bushing Fitment)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD; font-weight: bold; background-color: #fdfdfd;\"\u003eApproach Angle \u0026amp; Hand\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD; color: #28a745; font-weight: bold;\"\u003e93 Degrees | Left-Hand (L)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD; color: #28a745; font-weight: bold;\"\u003e93 Degrees | Left-Hand (L)\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\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003e200 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003e7.87 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD; font-weight: bold; background-color: #fdfdfd;\"\u003eMinimum Boring Diameter (D-min)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003e24 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003e0.945 inches\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;\"\u003ePerfectly Compatible Inserts\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD; font-weight: bold; color: #28a745;\"\u003eVBMT 1103** \/ VCGT 1103** (35° Positive)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD; font-weight: bold; color: #28a745;\"\u003eVBMT 33* Series (e.g., VBMT 331 \/ VBMT 332 Left-Config)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD; font-weight: bold; background-color: #fdfdfd;\"\u003eFastener Parts Assembly\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eM2.5 Insert Screw \/ Torx T8 Drive Wrench\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eM2.5 Insert Screw \/ Torx T8 Drive Wrench\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"color: #47479f; font-size: 15px; margin-top: 20px; margin-bottom: 12px; font-weight: 600;\"\u003eRecommended Cutting Parameters for VBMT 1103 Indexing Setup\u003c\/h3\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px; -webkit-overflow-scrolling: touch;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 500px; font-size: 13px; text-align: left; border: 1px solid #DDDDDD;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #fafaff; color: #47479f;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDDDDD; width: 40%;\"\u003eWorkpiece Material Substrates\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDDDDD; width: 60%;\"\u003eTarget Line Cutting Speed (Vc) \u0026amp; Feed Speed (f) Pairs\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; background-color: #fdfdfd;\"\u003eCarbon \u0026amp; Alloy Steels (P-Class \/ e.g., 4140, 1045)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eVc: 140-240 m\/min (460-780 sfm) | f: 0.05-0.18 mm\/rev (0.002-0.007 ipr)\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;\"\u003eStainless Steel Alloys (M-Class \/ 304, 316)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eVc: 90-160 m\/min (295-525 sfm) | f: 0.04-0.12 mm\/rev (0.0015-0.005 ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD; font-weight: bold; background-color: #fdfdfd;\"\u003eAluminum \u0026amp; Non-Ferrous (N-Class \/ With Polished VCGT)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eVc: 250-650 m\/min (820-2130 sfm) | f: 0.03-0.20 mm\/rev (0.001-0.008 ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; background-color: #fafaff; padding: 20px; border-radius: 6px; text-align: center; margin-bottom: 30px; box-sizing: border-box;\"\u003e\n\u003cp style=\"margin: 0 0 12px 0; font-size: 14px; font-weight: bold; color: #47479f;\"\u003eNeed high-performance 35-degree positive VBMT 1103 indexable carbide inserts paired with this toolholder?\u003c\/p\u003e\n\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; padding: 11px 22px; background-color: rgb(71, 71, 159); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; border-radius: 4px; font-size: 13px; transition: background 0.2s;\"\u003e\u003cb\u003e \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=vbmt1103\" target=\"_blank\" rel=\"noopener\"\u003eSource BEYOND VBMT1103 Inserts \u0026amp; Toolbars Here → \u003c\/a\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px; margin-top: 30px; font-weight: bold;\"\u003e4. Industrial Application Scenarios\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; font-size: 14px; margin-bottom: 25px; color: #444444;\"\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eLeft-Hand Sub-Spindle Boring:\u003c\/strong\u003e Ideal for modern multi-axis CNC turn-mill centers where back-boring or internal copy turning is executed on the sub-spindle.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003ePrecision Internal Profile Copying:\u003c\/strong\u003e The nimble 11mm insert size coupled with a 93-degree lead angle permits seamless navigation through tight radius corners and complex internal relief tracks.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eSmall Hole Semi-Finishing:\u003c\/strong\u003e With a minimum bore entry capability of 24mm, it efficiently processes delicate aerospace and hydraulic valve chambers where maximum clearance is non-negotiable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px; margin-top: 30px; font-weight: bold;\"\u003e5. Equipment \u0026amp; Tool Compatibility\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; font-size: 14px; margin-bottom: 25px; color: #444444;\"\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eLathe Turret Clamping:\u003c\/strong\u003e Slides perfectly into standard 20mm CNC turret blocks, split clamping sleeves, or specialized internal boring bar bushings.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eUniversal Insert Matching:\u003c\/strong\u003e Explicitly engineered to host ISO\/ANSI standard 35-degree positive rhombic VBMT 1103** (VBMT 33*) or ground VCGT 1103** inserts from any global manufacturer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px; margin-top: 30px; font-weight: bold;\"\u003e6. BEYOND Proprietary Carbide Grade Matrix for VBMT\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 15px; color: #444444;\"\u003eAchieve maximum tool life by pairing your 20mm boring bar with the recommended BEYOND industrial grade:\u003c\/p\u003e\n\u003cdiv style=\"overflow-x: auto; margin-bottom: 25px; -webkit-overflow-scrolling: touch;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 600px; font-size: 13px; text-align: left; border: 1px solid #DDDDDD;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eBEYOND Grade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eCoating Technology\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eMaterial Application Intent\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eGlobal Equivalent Grade\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; background-color: #fdfdfd;\"\u003eBY1030\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eCVD Multi-Layer TiCN + Al2O3\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eGeneral carbon and structural alloy steel internal finish-to-medium boring.\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eSandvik GC4325 \/ Korloy NC3220\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;\"\u003eBY8020\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003ePVD High-Density Nano-AlTiN\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eStainless steel castings (304\/316) and high-temperature nickel-chrome superalloys.\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eSandvik GC1115 \/ Kennametal KC5010\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD; font-weight: bold; background-color: #fdfdfd;\"\u003eBYC25\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eUncoated Ti-Based Cermet Matrix\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eHigh-speed precision micro-boring to achieve a mirror-gloss surface finish.\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eKyocera TN60 \/ Mitsubishi NX2525\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px; margin-top: 30px; font-weight: bold;\"\u003e7. Why Choose BEYOND Cutting Systems\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 20px; text-align: justify; color: #444444;\"\u003eBEYOND tooling solutions are engineered for high dimensional repeatability across automated CNC manufacturing environments. Machined on advanced 5-axis production cells, our pocket tolerances guarantee drop-in center height accuracy, extending indexable insert edge life.\u003c\/p\u003e\n\u003cdiv style=\"display: block; margin-bottom: 30px;\"\u003e\n\u003cdiv style=\"border: 1px solid #47479F; border-radius: 6px; padding: 15px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 15px; margin-bottom: 6px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong style=\"display: block; font-size: 13px; margin-bottom: 4px; color: #333333;\"\u003eEthan M. — United States\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 12.5px; color: #555555; text-align: justify;\"\u003e\"Awesome pocket consistency on this 20mm left-hand bar. I use it for back-boring automotive sleeves with VBMT 110304 inserts. Chatter is nonexistent even when extended to 75mm. Outlasts cheaper alternatives by a mile.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; border-radius: 6px; padding: 15px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 15px; margin-bottom: 6px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong style=\"display: block; font-size: 13px; margin-bottom: 4px; color: #333333;\"\u003eKlaus S. — Germany\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 12.5px; color: #555555; text-align: justify;\"\u003e\"Sehr präziser Plattensitz für VBMT 1103. Die 93-Grad-Geometrie funktioniert hervorragend bei engen Innenprofilen. Keine Vibrationen bei gehärtetem Stahl.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; border-radius: 6px; padding: 15px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 15px; margin-bottom: 6px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong style=\"display: block; font-size: 13px; margin-bottom: 4px; color: #333333;\"\u003eMatteo R. — Italy\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 12.5px; color: #555555; text-align: justify;\"\u003e\"Ottimo stelo per tornitura interna. La misura da 11mm permette di entrare in fori piccoli mantenendo la stabilità del gambo da 20. Finitura impeccabile.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; border-radius: 6px; padding: 15px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 15px; margin-bottom: 6px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong style=\"display: block; font-size: 13px; margin-bottom: 4px; color: #333333;\"\u003eYukihiro O. — Japan\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 12.5px; color: #555555; text-align: justify;\"\u003e\"背面加工の倣い用に購入。VBMT11チップとの相性抜群で、座面が非常に正確。ビビりやすい内径切削でも安定してきれいな面がでます。非常に満足しています。\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; border-radius: 6px; padding: 15px; background-color: #ffffff; margin-bottom: 12px;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 15px; margin-bottom: 6px;\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong style=\"display: block; font-size: 13px; margin-bottom: 4px; color: #333333;\"\u003eGeorge H. — United Kingdom\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 12.5px; color: #555555; text-align: justify;\"\u003e\"Decent industrial finish. The black oxide holds up well against intensive water-soluble coolant. Clamping screw threads are crisp.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px; margin-top: 30px; font-weight: bold;\"\u003e8. Technical FAQ \u0026amp; Troubleshooting Guide\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 25px;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 12px; border-radius: 6px 6px 0 0; font-weight: bold; font-size: 14px;\"\u003eQ: Why use a VBMT 1103 insert over a VBMT 1604 insert on a 20mm shank?\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; border-top: none; padding: 15px; margin-bottom: 15px; border-radius: 0 0 6px 6px; font-size: 13.5px; background-color: #fdfdfd; text-align: justify; color: #444444;\"\u003eA: The VBMT 1103 insert has a thinner thickness (3.18mm) and smaller edge length (11mm) compared to the 1604. This configuration creates a more compact toolhead outline, decreasing the minimum entry bore requirement (D-min) down to 24mm. It allows operators to use a rigid 20mm bar in smaller holes where a 16mm insert head would otherwise drag or hit the bore wall.\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 12px; border-radius: 6px 6px 0 0; font-weight: bold; font-size: 14px;\"\u003eQ: What is the absolute minimum bore entry diameter for the S20R-SVUBL11?\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; border-top: none; padding: 15px; margin-bottom: 15px; border-radius: 0 0 6px 6px; font-size: 13.5px; background-color: #fdfdfd; text-align: justify; color: #444444;\"\u003eA: The minimum bore entry diameter (D-min) is \u003cstrong\u003e24mm (0.945 inches)\u003c\/strong\u003e. Attempting to pass this tool inside a bore smaller than 24mm will result in the heel of the steel tool head rubbing against the inner radius of the workpiece, destroying the finish and potentially fracturing the carbide insert.\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 12px; border-radius: 6px 6px 0 0; font-weight: bold; font-size: 14px;\"\u003eQ: How do I resolve micro-vibration when finish boring sticky 304 Stainless Steel?\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; border-top: none; padding: 15px; margin-bottom: 25px; border-radius: 0 0 6px 6px; font-size: 13.5px; background-color: #fdfdfd; text-align: justify; color: #444444;\"\u003eA: Stainless steel tends to cause work hardening if the tool rubs. To stop vibration, avoid using an oversized nose radius—switch from 0.4mm (VBMT 110304) down to 0.2mm (VBMT 110302) to lower radial cutting pressure. Pair it with our PVD nano-coated \u003cstrong\u003eBY8020 grade insert\u003c\/strong\u003e with a sharp finishing chipbreaker, and ensure your feed rate stays above 0.05 mm\/rev to slice cleanly underneath the work-hardened layer.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #333333; color: #ffffff; padding: 18px; border-radius: 6px; font-size: 13px; text-align: justify; line-height: 1.6;\"\u003e\n\u003cstrong\u003eMachinist Setup Tip (Workpiece Material Matrix Alignment):\u003c\/strong\u003e When deploying left-hand profiling passes with the S20R-SVUBL11, absolute precision in aligning the cutting tip center-height with the lathe spindle centerline is vital. Because 35-degree positive VBMT inserts depend entirely on the pre-machined rake angles of the toolholder head, setting the tool even 0.05mm above or below center-line alters the operational clearance to zero inside a tight 24mm bore. This misalignment forces the insert flank or the steel head to press directly against the freshly cut workpiece path, generating extreme heat, destroying surface finishes, and fracturing the carbide tip. Keep high-pressure emulsion fluid aimed directly at the pocket to flush stringy nesting chips away instantly.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43622145982636,"sku":"S20R-SVUBL11","price":21.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S20R-SVUBL11_93_degree_indexable_internal_profiling_boring_bar_left_hand_CNC_lathe_tool_holder_for_VBMT_110302_VBMT_110304_inserts.jpg?v=1779692233","url":"https:\/\/cnchome-beyond.com\/products\/s20r-svubl11-beyond-boring-bar-cnc-internal-turning-holder","provider":"CNCHome-Beyond","version":"1.0","type":"link"}