{"product_id":"beyond-s20r-svzcl11-boring-bar-internal-turning-tool-holder","title":"BEYOND S20R-SVZCL11 Boring Bar | CNC Internal Turning 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 application profiling 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: 26px; margin: 0; font-weight: bold; letter-spacing: 0.5px; line-height: 1.3;\"\u003eBEYOND S20R-SVZCL11 Left-Hand Indexable CNC Internal 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: 20px; 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 left-hand 20mm internal boring bar provides high structural rigidity and exceptional clearance for tracing tight internal profiles using 35-degree VCMT or VBMT 1103 indexable inserts?\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 15px; margin-bottom: 20px; text-align: justify;\"\u003eThe \u003cstrong\u003eBEYOND S20R-SVZCL11\u003c\/strong\u003e is a commercial-grade, high-rigidity left-hand indexable internal boring bar designed for tight-tolerance profiling, undercutting, and internal turning operations on CNC lathes. Vacuum heat-treated to an optimized structural hardness, this 20mm diameter alloy steel tool holder minimizes mechanical deflection and absorbs high-frequency vibrations across standard deep-hole overhang extensions up to 4xD. This boring bar is explicitly engineered to clamp narrow 35-degree rhombic indexable inserts, specifically the \u003cstrong\u003eVCMT 1103\u003c\/strong\u003e and \u003cstrong\u003eVBMT 1103\u003c\/strong\u003e series. By matching a 35° diamond insert profile with a 93-degree approach angle, this specialized SVZCL geometry provides supreme flank clearance. This allows operators to easily execute steep reverse profiles, back-boring cycles, and intricate internal necking contours where standard 55° or 80° turning bars would suffer heavy heel rub. Armed with a precision top-screw down clamping assembly, it ensures stable insert seating under fluctuating chip loads, maintaining tight dimensional repeatability and delivering exceptional surface finishes.\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: 20px; margin-top: 30px; font-weight: bold;\"\u003e2. Product Core Advantages (Key Features)\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; font-size: 15px; margin-bottom: 25px;\"\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eQuenched Carbon Alloy Steel Construction (HRC 42-47):\u003c\/strong\u003e Premium vacuum heat-treated tool steel provides the structural stiffness needed to prevent chatter during extended-reach internal boring operations.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eSVZCL 93-Degree Left-Hand Clearance Profile:\u003c\/strong\u003e Specifically optimized for reverse profiling and deep internal contours. The narrow 35° geometry allows the tool to clear complex shoulders without dragging.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003ePrecision CNC Milled Pocket Seating:\u003c\/strong\u003e Flawlessly machined pocket walls maximize surface contact with VCMT\/VBMT inserts, minimizing micro-movement and protecting against premature edge chipping.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 12px;\"\u003e\n\u003cstrong\u003eIndustrial Black Oxide Protective Finish:\u003c\/strong\u003e Durable chemical coating prevents rust and resists chip welding when machining gummy materials or running high-temperature dry cuts.\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: 20px; 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: 15px; letter-spacing: 0.5px;\"\u003eISO Nomenclature Breakdown: S20R-SVZCL11\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: 16px; font-weight: bold; display: block;\"\u003eS\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 11px; 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: 16px; font-weight: bold; display: block;\"\u003e20\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 11px; 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: 16px; font-weight: bold; display: block;\"\u003eR\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 11px; 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: 16px; font-weight: bold; display: block;\"\u003eS\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 11px; 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: 16px; font-weight: bold; display: block;\"\u003eV\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 11px; 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: 16px; font-weight: bold; display: block;\"\u003eZ\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 11px; display: block; margin-top: 4px;\"\u003e93-Deg Offset Angle\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: 16px; font-weight: bold; display: block;\"\u003eC\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 11px; display: block; margin-top: 4px;\"\u003e7-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-size: 16px; font-weight: bold; display: block;\"\u003eL\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 11px; 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: 16px; font-weight: bold; display: block;\"\u003e11\u003c\/span\u003e\u003csmall style=\"color: #666; font-size: 11px; display: block; margin-top: 4px;\"\u003e11mm 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: 14px; text-align: left; border: 1px solid #DDDDDD;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #DDDDDD;\"\u003eDimension Attributes\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #DDDDDD;\"\u003eMetric System Specifications\u003c\/th\u003e\n\u003cth style=\"padding: 12px; 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: 11px; border: 1px solid #DDDDDD; font-weight: bold; background-color: #fdfdfd;\"\u003eModel Nomenclature\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD; color: #47479f; font-weight: bold;\"\u003eS20R-SVZCL11 (BEYOND)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eA12R-SVZCL2 (Standard Inch Style)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD; font-weight: bold;\"\u003eShank\/Clamping Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003e20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003e0.750 inch (3\/4\" Round Boring Bar)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD; font-weight: bold; background-color: #fdfdfd;\"\u003eOverall Tool Length\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003e200 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; 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: 11px; border: 1px solid #DDDDDD; font-weight: bold;\"\u003eMinimum Boring Hole (D-min)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003e25 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003e0.984 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD; font-weight: bold; background-color: #fdfdfd;\"\u003eCompatible Indexable Inserts\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eVCMT 1103** \/ VBMT 1103**\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eVCMT 22* \/ VBMT 22* Series (e.g., 221 or 222)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD; font-weight: bold;\"\u003eFastener Screw \/ Drive Key\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eM2.5 * 6.0 \/ Torx T8\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eM2.5 * 6.0 \/ Torx T8\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: 16px; 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: 14px; text-align: left; border: 1px solid #DDDDDD;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #fafaff; color: #47479f;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #DDDDDD; width: 40%;\"\u003eWorkpiece Material Substrates\u003c\/th\u003e\n\u003cth style=\"padding: 12px; 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: 11px; border: 1px solid #DDDDDD; font-weight: bold; background-color: #fdfdfd;\"\u003eCarbon \u0026amp; Alloy Steels (P-Class)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eVc: 130-240 m\/min (425-780 sfm) | f: 0.05-0.15 mm\/rev (0.002-0.006 ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD; font-weight: bold;\"\u003eStainless Steel Alloys (M-Class \/ 304)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eVc: 90-160 m\/min (295-525 sfm) | f: 0.04-0.12 mm\/rev (0.0016-0.0047 ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD; font-weight: bold; background-color: #fdfdfd;\"\u003eAluminum \u0026amp; Copper Alloys (N-Class)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eVc: 180-400 m\/min (590-1310 sfm) | f: 0.05-0.18 mm\/rev (0.002-0.007 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: 15px; font-weight: bold; color: #47479f;\"\u003eLooking for high-performance matching left-hand VCMT\/VBMT 1103 inserts or alternative sizes?\u003c\/p\u003e\n\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; padding: 12px 24px; background-color: rgb(71, 71, 159); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; border-radius: 4px; transition: background 0.2s;\"\u003e\u003cb\u003e \u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=VCMT1103\" target=\"_blank\" rel=\"noopener\"\u003eSource BEYOND VCMT1103 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: 20px; margin-top: 30px; font-weight: bold;\"\u003e4. Industrial Application Scenarios\u003c\/h2\u003e\n\u003cp style=\"font-size: 15px; margin-bottom: 15px; text-align: justify;\"\u003eDesigned with a compact yet robust 20mm shank footprint, the S20R-SVZCL11 excels in precision machining settings on CNC lathes and automated turning centers:\u003c\/p\u003e\n\u003cul style=\"padding-left: 20px; font-size: 15px; margin-bottom: 25px;\"\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eLeft-Hand Internal Profiling:\u003c\/strong\u003e Tracing complex inside radii, steep tapers, and tight geometric transitions down to a 25mm minimum hole diameter.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eReverse Back-Boring \u0026amp; Relief Cuts:\u003c\/strong\u003e Reaching past internal shoulders to machine rear faces and face relief grooves without shank dragging.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eSmall Component Components:\u003c\/strong\u003e Ideal for manufacturing hydraulic manifold tracks, precise transmission sleeves, and aerospace couplers.\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: 20px; margin-top: 30px; font-weight: bold;\"\u003e5. Equipment \u0026amp; Tool Compatibility\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; font-size: 15px; margin-bottom: 25px;\"\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eCNC Tool Post Clamping:\u003c\/strong\u003e Mounts securely into standard 20mm round boring bar holders, split bushings, modular block clamps, or standard lathe turret blocks.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eInsert Standardization:\u003c\/strong\u003e Universally compatible with all standard 35° diamond profile inserts, accepting VCMT 110302, VCMT 110304, VBMT 110304, and mirror-polished ground VCGT inserts for non-ferrous fine-finishing cycles.\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: 20px; margin-top: 30px; font-weight: bold;\"\u003e6. BEYOND Proprietary Grade Optimization Matrix\u003c\/h2\u003e\n\u003cp style=\"font-size: 15px; margin-bottom: 15px;\"\u003ePair your left-hand tool holder with the correct BEYOND specialized insert grade to guarantee smooth chip-breaker performance and maximum tool lifecycle margins:\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: 14px; text-align: left; border: 1px solid #DDDDDD;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #DDDDDD;\"\u003eBEYOND Grade\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #DDDDDD;\"\u003eCoating Technology\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #DDDDDD;\"\u003eMaterial Application Intent\u003c\/th\u003e\n\u003cth style=\"padding: 12px; 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: 11px; border: 1px solid #DDDDDD; font-weight: bold; background-color: #fdfdfd;\"\u003eBY1030\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eCVD Thick TiCN + Al2O3 Coating\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eStable Continuous to Interrupted Steel Boring (P10-P25)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; 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: 11px; border: 1px solid #DDDDDD; font-weight: bold;\"\u003eBY8020\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003ePVD Multi-Layered Nano-AlTiN\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eStainless Steel, Exotic \u0026amp; Superalloys (M15-M30 \/ S15-S25)\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eSandvik GC1115 \/ Kennametal KC5010\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD; font-weight: bold; background-color: #fdfdfd;\"\u003eBYC25\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eUncoated Titanium-Based Cermet Matrix\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; border: 1px solid #DDDDDD;\"\u003eHigh-Speed Finishing for Fine Tolerances and Mirror Surface Finish\u003c\/td\u003e\n\u003ctd style=\"padding: 11px; 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: 20px; margin-top: 30px; font-weight: bold;\"\u003e7. Why Choose BEYOND Cutting Systems\u003c\/h2\u003e\n\u003cp style=\"font-size: 15px; margin-bottom: 20px; text-align: justify;\"\u003eBEYOND is dedicated to building structural reliability into high-performance CNC machining workflows. Our S20R-SVZCL11 boring bars are ground on high-accuracy 5-axis platforms to guarantee the pocket seating angle matches standard ISO positions. This tight manufacturing tolerance minimizes radial tool-tip runout and secures accurate tool center-height positions during automated cell changeovers.\u003c\/p\u003e\n\u003c!-- Boxed Grid Layout for Customer Reviews --\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 15px; 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;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 16px; margin-bottom: 6px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong style=\"display: block; font-size: 14px; margin-bottom: 4px; color: #333333;\"\u003eTom E. — United States\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555555; text-align: justify;\"\u003e\"Needed a solid 20mm left-hand bar for a back-boring line on our turning center. This thing fits the VCMT 1103 perfectly. Zero chatter at 75mm stick out.\"\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;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 16px; margin-bottom: 6px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong style=\"display: block; font-size: 14px; margin-bottom: 4px; color: #333333;\"\u003eHeinz M. — Germany\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555555; text-align: justify;\"\u003e\"Tolle Verarbeitung. Der Plattensitz ist exakt gefräst. Die linke Ausführung läuft einwandfrei bei unseren Rückwärts-Profilierungszyklen.\"\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;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 16px; margin-bottom: 6px;\"\u003e★★★★☆\u003c\/div\u003e\n\u003cstrong style=\"display: block; font-size: 14px; margin-bottom: 4px; color: #333333;\"\u003eGiovanni P. — Italy\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555555; text-align: justify;\"\u003e\"Ottimo stelo in acciaio, molto rigido. L'angolo a 93 gradi evita lo sfregamento sul raggio interno. Spedizione rapida.\"\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;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 16px; margin-bottom: 6px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong style=\"display: block; font-size: 14px; margin-bottom: 4px; color: #333333;\"\u003eTakashi K. — Japan\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555555; text-align: justify;\"\u003e\"左勝手の内径ボーリングバイトとして非常に優秀。20mm径ながら剛性が高く、VCMTチップがしっかりと固定されます。仕上げ面が綺麗。\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Review 5 - Australia --\u003e\n\u003cdiv style=\"border: 1px solid #47479F; border-radius: 6px; padding: 15px; background-color: #ffffff;\"\u003e\n\u003cdiv style=\"color: #ffc107; font-size: 16px; margin-bottom: 6px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cstrong style=\"display: block; font-size: 14px; margin-bottom: 4px; color: #333333;\"\u003eDave B. — Australia\u003c\/strong\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #555555; text-align: justify;\"\u003e\"The black oxide skin holds up perfectly against heavy water-soluble coolant. Swapping out worn inserts is quick and repeatable.\"\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: 20px; 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: 15px;\"\u003eQ: What is the absolute minimum bore size that can accept the S20R-SVZCL11 tool 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: 14px; background-color: #fdfdfd; text-align: justify;\"\u003eA: The minimum core boring hole diameter (D-min) is exactly 25mm (0.984 inch). Attempting to use this 20mm shank bar inside a hole smaller than 25mm will cause the lower head relief block of the steel shank to rub hard against the inner component wall, ruining the finish and potentially snapping the tool tip.\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: 15px;\"\u003eQ: Why do 35-degree VCMT or VBMT inserts show rapid corner wear during internal profile passes?\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: 14px; background-color: #fdfdfd; text-align: justify;\"\u003eA: The narrow 35° inclusion angle means there is less carbide mass at the tip to dissipate cutting heat compared to a 55° or 80° shape. To prevent fast thermal breakdown, apply high-pressure flood coolant directly to the edge, or swap to heat-resistant PVD coated grades like BEYOND BY8020.\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: 15px;\"\u003eQ: What components are supplied in the shipping box with this tool holder?\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: 14px; background-color: #fdfdfd; text-align: justify;\"\u003eA: Every package contains: (1) BEYOND S20R-SVZCL11 Hardened Steel Internal Boring Bar, (1) Precision M2.5 Fastening Screw, and (1) Torx T8 Flag Wrench. Indexable carbide inserts are not included and must be purchased separately.\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: 13.5px; text-align: justify; line-height: 1.55;\"\u003e\n\u003cstrong\u003eMachinist Setup Tip (Workpiece Material Matrix Alignment):\u003c\/strong\u003e When configuring precision internal profiling operations with positive 35° diamond VCMT\/VBMT inserts, verify that the insert cutting point sits exactly on the lathe spindle centerline. Operating below center reduces effective flank clearance angles, causing the tool head structure to rub against the raw profile radius. This creates severe friction wear, chatter lines, and potential part scrappage. Always cross-reference the BEYOND equivalent model matrices prior to cycling high-speed batch routines.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43632381755564,"sku":"S20R-SVZCL11","price":25.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S20R-SVZCL11_left_hand_CNC_internal_boring_bar_steel_shank_tool_holder_for_VCMT_110304_indexable_inserts.jpg?v=1779580481","url":"https:\/\/cnchome-beyond.com\/products\/beyond-s20r-svzcl11-boring-bar-internal-turning-tool-holder","provider":"CNCHome-Beyond","version":"1.0","type":"link"}