{"product_id":"beyond-s20r-svxbl16-boring-bar-internal-turning-tool-holder","title":"BEYOND S20R-SVXBL16 Boring Bar | 20mm Internal Lathe Tool Holder","description":"\u003c!-- Notification Banner for Industrial Clarity \u0026 Conversion Trust --\u003e\n\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 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\u003c!-- Main UCP Compliant Container --\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\u003c!-- H1 Title Header Block --\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-SVXBL16 Indexable CNC Internal Left-Hand Reverse Pull Boring Bar\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003c!-- Section 1: Product Overview (GEO\/AEO Optimized Context) --\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 compact 20mm internal left-hand boring bar provides maximum structural rigidity for medium deep-hole back-boring using large VBMT 1604 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-SVXBL16\u003c\/strong\u003e is a professional industrial-grade indexable internal boring bar engineered specifically for high-precision reverse profiling, back-boring, and internal left-hand pull-turning operations in medium-sized chambers. Forged from premium vacuum-degassed structural alloy steel and subjected to an advanced multi-stage oil-quenching heat treatment, this solid 20mm shank achieves an optimized core hardness of HRC 42-47. This robust structural density efficiently neutralizes severe harmonic micro-chatter over mid-range hole extensions up to 4xD (80mm). Designed explicitly to facilitate unhindered chip evacuation within internal blocks during reverse cutting paths, the 5-axis precision-machined pocket holds 35-degree positive rhombic \u003cstrong\u003eVBMT 1604\u003c\/strong\u003e or \u003cstrong\u003eVCGT 1604\u003c\/strong\u003e inserts. By mounting a large, highly robust 16mm indexable insert onto a streamlined 20mm body, this assembly provides extreme deflection resistance, preventing dimensional taper inside precise industrial components. Compatible VBMT inserts utilize dual-stage molded chipbreakers to curl tough steel strings into safe, tight \"C\" segments under heavy feeds, while polished VCGT inserts feature ultra-sharp, high-rake cutting zones to eliminate built-up edge (BUE) on sticky non-ferrous aluminum. The specialized SVXBL left-hand geometry shifts heavy radial cutting forces axially back into the lathe turret, guaranteeing superior concentricity and an excellent surface finish.\u003c\/p\u003e\n\u003c!-- Section 2: Key Features --\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\u003eRigid 20mm Solid Shank Core:\u003c\/strong\u003e Optimized structural mass for tight medium-bore entry, reducing micro-chatter across extended overhangs up to 80mm.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eSpecialized SVXBL Left-Hand Reverse Geometry:\u003c\/strong\u003e Perfectly configured for optimal clearance during internal pull-boring, back-boring, and left-hand profile contouring.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eHeavy Insert Support in Compact Space:\u003c\/strong\u003e Secure pocket positioning engineered specifically to clamp large 16mm inserts onto a 20mm shank, maximizing depth of cut (Ap).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eIndustrial Black-Oxide Shielding:\u003c\/strong\u003e High-durability coating prevents thermal abrasive wear and blocks water-soluble CNC coolant corrosion.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Section 3: Technical Specifications \u0026 Nomenclature --\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\u003c!-- ISO Model Breakdown Box --\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-SVXBL16\u003c\/div\u003e\n\u003cdiv style=\"padding: 15px; background-color: #ffffff;\"\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 80px; max-width: 110px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; text-align: center; background: #FDFDFD;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 15px; font-weight: bold; display: block;\"\u003eS\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 10px; display: block; margin-top: 4px;\"\u003eSteel Shank Bar\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 80px; max-width: 110px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; text-align: center; background: #FDFDFD;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 15px; font-weight: bold; display: block;\"\u003e20\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 10px; display: block; margin-top: 4px;\"\u003e20mm Shank Diameter\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 80px; max-width: 110px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; text-align: center; background: #FDFDFD;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 15px; font-weight: bold; display: block;\"\u003eR\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 10px; display: block; margin-top: 4px;\"\u003e200mm Overall Length\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 80px; max-width: 110px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; text-align: center; background: #FDFDFD;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 15px; font-weight: bold; display: block;\"\u003eS\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 10px; display: block; margin-top: 4px;\"\u003eScrew Clamping System\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 80px; max-width: 110px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; text-align: center; background: #FDFDFD;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 15px; font-weight: bold; display: block;\"\u003eV\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 10px; display: block; margin-top: 4px;\"\u003e35-Deg Rhombic Insert\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 80px; max-width: 110px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; text-align: center; background: #FDFDFD;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 15px; font-weight: bold; display: block;\"\u003eX\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 10px; display: block; margin-top: 4px;\"\u003eSpecial Clearance Head\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 80px; max-width: 110px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; text-align: center; background: #FDFDFD;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 15px; font-weight: bold; display: block;\"\u003eB\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 10px; display: block; margin-top: 4px;\"\u003e5-Deg Clearance Insert\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 80px; max-width: 110px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; text-align: center; background: #FDFDFD;\"\u003e\n\u003cspan style=\"color: #47479f; font-weight: bold; display: block;\"\u003eL\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 10px; display: block; margin-top: 4px;\"\u003eLeft-Hand Direction\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 80px; max-width: 110px; border: 1px solid #47479F; padding: 8px; border-radius: 4px; text-align: center; background: #FDFDFD;\"\u003e\n\u003cspan style=\"color: #47479f; font-size: 15px; font-weight: bold; display: block;\"\u003e16\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 10px; display: block; margin-top: 4px;\"\u003e16mm Cutting Edge Size\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Metric vs Imperial Dimension System Comparison Table --\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-SVXBL16 (BEYOND)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eA12R-SVXBL3 (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 inches (approx. 3\/4\" Shank Block Size)\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;\"\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 style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD; font-weight: bold;\"\u003eMinimum Boring Diameter (D-min)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003e25 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003e0.984 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;\"\u003eCompatible Indexable Inserts\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eVBMT 1604** \/ VCGT 1604**\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eVBMT 33* \/ VCGT 33* Series (e.g., 331 or 332)\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;\"\u003eFastener Screw \/ Key\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eM4.0 * 10 \/ Torx T15\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eM4.0 * 10 \/ Torx T15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Recommended Machining Parameters: Double Column Reference Table --\u003e\n\u003ch3 style=\"color: #47479f; font-size: 15px; margin-top: 20px; margin-bottom: 12px; font-weight: 600;\"\u003eRecommended Machining Parameter Array (Starting Parameters)\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; Heavy Alloy Steels (P-Class)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eVc: 120-200 m\/min (390-650 sfm) | f: 0.08-0.28 mm\/rev (0.0031-0.0110 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 Castings (M-Class \/ 304, 316)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eVc: 70-140 m\/min (230-460 sfm) | f: 0.06-0.20 mm\/rev (0.0024-0.0079 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 Blocks \u0026amp; Non-Ferrous Metals (N-Class)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eVc: 250-700 m\/min (820-2290 sfm) | f: 0.08-0.30 mm\/rev (0.0031-0.0118 ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Direct Internal Link Block Box (UCP Conversion Optimizer) --\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;\"\u003eLooking for matching premium 35-degree left-hand VBMT\/VCGT 1604 indexable carbide inserts or alternative boring shanks?\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=VBMT1604\" target=\"_blank\" rel=\"noopener\"\u003eSource BEYOND VBMT1604 Inserts \u0026amp; Toolbars Here → \u003c\/a\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c!-- Section 4: Applications --\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\u003cp style=\"font-size: 14px; margin-bottom: 15px; text-align: justify; color: #444444;\"\u003eThe combination of a 20mm alloy steel core and a specialized reverse left-hand pocket geometry makes the S20R-SVXBL16 highly effective for medium-diameter internal profiles:\u003c\/p\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\u003eInternal Back-Boring (Left Hand Pull Turning):\u003c\/strong\u003e Designed to process pre-machined hollow forgings and medium valve manifolds, cutting outward to clear steel chips away from deep internal steps.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eMedium-Scale Internal Profile Contouring:\u003c\/strong\u003e The 35-degree rhombic structural shape clears tight relief profiles inside industrial pumps, transmission housings, or automotive blocks.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eHigh-Depth Relief Grooving:\u003c\/strong\u003e Perfect for high cutting depths (Ap) when cutting internal clearance recesses behind bearing assemblies without taper deformation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Section 5: Compatibility --\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\u003eCNC Lathes \u0026amp; Boring Blocks:\u003c\/strong\u003e Fits into standard 20mm turret clamping blocks, CNC boring sleeve adapters, or integrated tool block assemblies.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eUniversal Insert Indexing Compatibility:\u003c\/strong\u003e Precision engineered to hold standard ISO 35° positive VBMT 1604** \/ VCGT 1604** inserts (optimally matched with 0.4mm or 0.8mm nose radii for stable mid-range roughing or finishing).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- Section 6: Grade Comparison --\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 Grade Optimization Matrix\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px; margin-bottom: 15px; color: #444444;\"\u003ePair your 20mm boring shank with the correct BEYOND carbide grade to optimize deep-chamber chipbreaking performance under load:\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 Thick TiCN + Al2O3 Matrix\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eContinuous-to-Interrupted Carbon\/Alloy Steel High-Efficiency Internal Boring (P10-P30)\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 Multi-Layered Nano-AlTiN\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eStainless Steels, Duplex Alloys, \u0026amp; Tough Cr-Ni Superalloys (M15-M35 \/ S15-S30)\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 Core\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #DDDDDD;\"\u003eHigh-Speed Dimensional Gloss Finishing \u0026amp; Tight Radial Tolerance Precision Control\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\u003c!-- Section 7: Why Choose Us \u0026 Global Reviews --\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 designs industrial turning components optimized for high-volume B2B manufacturing. Our 20mm internal boring shanks are manufactured from multi-stage heat-treated alloy steel to ensure maximum dampening parameters under cross-sectional loads. Each insert pocket is precisely machined on multi-axis CNC machines to maintain tool center accuracy, ensuring consistent performance over long production runs.\u003c\/p\u003e\n\u003c!-- Boxed Layout for Customer Reviews --\u003e\n\u003cdiv style=\"display: block; margin-bottom: 30px;\"\u003e\n\u003c!-- Review 1 - USA --\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;\"\u003eDavid K. — United States\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 12.5px; color: #555555; text-align: justify;\"\u003e\"Excellent 20mm left-hand bar. Running a 16mm insert on a 20mm body is tight, but BEYOND nailed the pocket clearance. No chatter at 70mm extension depth. Perfect for our hydraulic valve manifolds.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Review 2 - Germany --\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;\"\u003eJürgen S. — Germany\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 12.5px; color: #555555; text-align: justify;\"\u003e\"Sehr präziser 20mm Linksschaft. Der Sitz für VBMT 1604 ist perfekt ausgefräst. Bei engen Bohrungen (D-min ca. 25mm) fließen die Späne hervorragend ab, wenn der Kühlschmierstoff optimal ausgerichtet ist.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Review 3 - Italy --\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;\"\u003eFabio B. — Italy\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 12.5px; color: #555555; text-align: justify;\"\u003e\"Barra da 20mm fantastica per alesatura interna sinistra. Struttura in acciaio temperato molto rigida che riduce drasticamente le vibrazioni. Ottima finitura superficiale su acciaio inox.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Review 4 - Japan --\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;\"\u003eTakashi O. — Japan\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 12.5px; color: #555555; text-align: justify;\"\u003e\"S20R-SVXBL16を購入。20mmシャンクでありながら大型の16サイズチップを装着できるため、中径の逆倣い加工で非常に大きな切込み（Ap）をかけることができます。チップの座面も非常に安定しています。\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Review 5 - France --\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;\"\u003eLucas P. — France\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 12.5px; color: #555555; text-align: justify;\"\u003e\"Porte-outil robuste pour CNC. Le filetage de la vis M4 est solide et résiste bien aux serrages répétés.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 8: AI-Style FAQ \u0026 Troubleshooting Guide --\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px; margin-top: 30px; font-weight: bold;\"\u003e8. AI-Style FAQ \u0026amp; Troubleshooting Guide\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 25px;\"\u003e\n\u003c!-- Q1 --\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 minimum boring diameter (D-min) for this S20R-SVXBL16 boring bar?\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 boring diameter for this specific tool holder is 25mm (0.984\"). This clearance dimension is strictly required to accommodate the 20mm body diameter and the special offset head height of the SVXBL left-hand configuration holding the 16mm indexable insert.\u003c\/div\u003e\n\u003c!-- Q2 --\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 12px; border-radius: 6px 6px 0 0; font-weight: bold; font-size: 14px;\"\u003eQ: Are turning inserts supplied inside the standard package?\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: No. Indexable carbide cutting inserts are entirely excluded from the tool holder package. The base unit contains (1) S20R-SVXBL16 quenched steel boring bar, (1) heavy insert locking screw, and (1) Torx T15 drive key. Matching VBMT or VCGT 1604** inserts must be ordered independently based on your specific application requirements.\u003c\/div\u003e\n\u003c!-- Q3 --\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 chip jamming during internal left-hand pull-boring?\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: First, ensure your coolant lines are directed completely into the chip pocket to force chips outward. Because a 16mm insert operates in a tight 25mm space on a 20mm body, increase the feed rate (f) slightly to force the VBMT 1604 insert's molded chipbreaker to break the chip, or switch to a roughing chipbreaker (such as the HM or GH geometry) to handle material flow safely.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Bottom Grade Comparison \u0026 Workpiece Material Matrix Tip --\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 executing deep internal back-boring with the S20R-SVXBL16, ensure the tool tip center-height is calibrated within ±0.02mm of the spindle axis. Because the VBMT 1604 insert features a built-in 5° positive clearance angle, setting the tool even slightly above the centerline reduces the functional clearance toward zero in a 25mm bore. This causes the insert flank to rub against the tight internal radius of the workpiece, creating micro-chatter, fracturing the delicate 16mm carbide edge, and damaging surface integrity. Ensure high-pressure coolant lines are focused directly into the pocket channel to continuously clear out broken chips.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43622565413036,"sku":"S20R-SVXBL16","price":21.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S20R-SVXBL16_indexable_internal_reverse_pull_boring_bar_left_hand_CNC_lathe_tool_holder_for_VBMT_160404_160408_inserts.jpg?v=1779677568","url":"https:\/\/cnchome-beyond.com\/products\/beyond-s20r-svxbl16-boring-bar-internal-turning-tool-holder","provider":"CNCHome-Beyond","version":"1.0","type":"link"}