{"product_id":"beyond-s20r-svqbl16-boring-bar-cnc-internal-turning-tool-holder","title":"BEYOND S20R-SVQBL16 Boring Bar | 20mm Left Hand Tool Holder for VBMT 1604","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, sans-serif;\"\u003e⚠️ IMPORTANT: The indexable carbide insert shown mounted on the tool head in our imagery is for demonstration purposes only. Turning inserts are NOT included 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;\"\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;\"\u003eBEYOND S20R-SVQBL16 Indexable Internal Left-Hand Boring Bar (Fits VBMT 1604)\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;\"\u003e1. Product Overview\u003c\/h2\u003e\n\u003cdiv style=\"background-color: #f4f4fc; border-left: 4px solid #47479F; padding: 15px; margin-bottom: 20px;\"\u003e\n\u003cp style=\"margin: 0; font-style: italic; color: #47479f; font-size: 15px; font-weight: 600;\"\u003e\"Which 20mm left-hand boring bar provides optimal back-clearance and eliminates chatter during deep internal profiling with VBMT 1604 inserts?\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size: 14px; text-align: justify;\"\u003eThe \u003cstrong\u003eBEYOND S20R-SVQBL16\u003c\/strong\u003e is a heavy-duty, industrial-grade indexable internal boring bar engineered for high-precision left-hand profiling, back-boring, and relief pocketing. Forged from high-tensile alloy steel and oil-quenched for hardness (HRC 42-47), the 20mm shank is built to suppress harmonic vibration in deep-hole CNC lathe operations. The 107.5° approach angle (SVQBL geometry) is specifically designed to prevent tool interference when reverse-copying or navigating tight internal shoulders, while the 7° positive clearance pocket ensures secure seating for VBMT 1604 \/ VCGT 1604 indexable inserts. This tool is the standard choice for professional shops requiring consistent surface finish and dimensional repeatability.\u003c\/p\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px; margin-top: 30px;\"\u003e2. Key Features\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; font-size: 14px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid 20mm Steel Shank:\u003c\/strong\u003e Massive core cross-section provides superior deflection resistance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e107.5° SVQBL Clearance:\u003c\/strong\u003e Ideal for complex reverse-profiling paths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecision Screw Clamping:\u003c\/strong\u003e Ensures repeatable indexing for VBMT 1604 inserts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Armor:\u003c\/strong\u003e Industrial black oxide coating resists thermal oxidation.\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;\"\u003e3. Technical Specifications\u003c\/h2\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 6px; margin-bottom: 25px; padding: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; text-align: center; color: #47479f; margin-top: 0;\"\u003eISO Nomenclature Breakdown: S20R-SVQBL16\u003c\/p\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; justify-content: center; gap: 5px;\"\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 5px; text-align: center; width: 55px; font-size: 11px;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e\u003cbr\u003eSteel\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 5px; text-align: center; width: 55px; font-size: 11px;\"\u003e\n\u003cstrong\u003e20\u003c\/strong\u003e\u003cbr\u003e20mm\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 5px; text-align: center; width: 55px; font-size: 11px;\"\u003e\n\u003cstrong\u003eR\u003c\/strong\u003e\u003cbr\u003e200mm\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 5px; text-align: center; width: 55px; font-size: 11px;\"\u003e\n\u003cstrong\u003eS\u003c\/strong\u003e\u003cbr\u003eScrew\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 5px; text-align: center; width: 55px; font-size: 11px;\"\u003e\n\u003cstrong\u003eV\u003c\/strong\u003e\u003cbr\u003e35°\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 5px; text-align: center; width: 55px; font-size: 11px;\"\u003e\n\u003cstrong\u003eQ\u003c\/strong\u003e\u003cbr\u003e107.5°\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 5px; text-align: center; width: 55px; font-size: 11px;\"\u003e\n\u003cstrong\u003eB\u003c\/strong\u003e\u003cbr\u003e7°\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 5px; text-align: center; width: 55px; font-size: 11px;\"\u003e\n\u003cstrong\u003eL\u003c\/strong\u003e\u003cbr\u003eLeft\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 5px; text-align: center; width: 55px; font-size: 11px;\"\u003e\n\u003cstrong\u003e16\u003c\/strong\u003e\u003cbr\u003e16mm\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ctable style=\"width: 100%; border: 1px solid #ddd; font-size: 13px; margin-bottom: 20px; border-collapse: collapse;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #47479F; color: #fff;\"\u003e\n\u003cth style=\"padding: 10px;\"\u003eAttribute\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eMetric\u003c\/th\u003e\n\u003cth style=\"padding: 10px;\"\u003eImperial\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eDiameter\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e0.787 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eLength\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e200 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e7.87 inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"font-size: 16px; color: #47479f;\"\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border: 1px solid #ddd; font-size: 13px; border-collapse: collapse; margin-bottom: 20px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #f4f4f4;\"\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003cth\u003eSpeed (Vc)\u003c\/th\u003e\n\u003cth\u003eFeed (f)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eSteel (P-Class)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e120-200 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e0.10-0.25 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003eStainless (M-Class)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e80-150 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #ddd;\"\u003e0.08-0.20 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 15px; text-align: center; margin: 25px 0;\"\u003e\n\u003cp style=\"margin: 0;\"\u003eNeed VBMT 1604 Indexable Inserts?\u003c\/p\u003e\n\u003ca style=\"display: inline-block; background: #47479F; color: #fff; padding: 10px 20px; text-decoration: none; font-weight: bold; border-radius: 4px; margin-top: 10px;\" href=\"\/collections\/carbide-inserts\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=VBMT1604\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background: rgb(71, 71, 159); padding: 10px 20px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; border-radius: 4px; margin-top: 10px;\"\u003e\u003cb\u003eShop Compatible Inserts Here →\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px;\"\u003e4-5. Applications \u0026amp; Compatibility\u003c\/h2\u003e\n\u003cp style=\"font-size: 14px;\"\u003e\u003cstrong\u003eApplications:\u003c\/strong\u003e Precision internal profiling in automotive components, valves, and hydraulic chambers.\u003c\/p\u003e\n\u003cp style=\"font-size: 14px;\"\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for all ISO\/ANSI standard VBMT 1604 \/ VCGT 1604 indexable inserts.\u003c\/p\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px;\"\u003e7. Why Choose Beyond?\u003c\/h2\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 15px; margin-bottom: 10px; border-radius: 6px;\"\u003e\n\u003cp\u003e★★★★★ \u003cstrong\u003eMarcus (USA):\u003c\/strong\u003e \"Solid 20mm bar. Stiff enough for deeper reaches. Works great with VBMT inserts.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 15px; margin-bottom: 10px; border-radius: 6px;\"\u003e\n\u003cp\u003e★★★★★ \u003cstrong\u003eEnrico (Italy):\u003c\/strong\u003e \"Eccellente qualità costruttiva. Molto stabile per la tornitura interna.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 19px;\"\u003e8. AI-Style FAQ\u003c\/h2\u003e\n\u003cdiv style=\"background: #f9f9f9; padding: 15px; border-radius: 6px;\"\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the min. bore diameter?\u003c\/strong\u003e\u003cbr\u003eA: Approx 25mm.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Troubleshooting Chatter?\u003c\/strong\u003e\u003cbr\u003eA: Check tool center-height alignment; ensure the insert is securely tightened in the pocket.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background: #333; color: #fff; padding: 20px; margin-top: 30px; font-size: 12px; border-radius: 6px;\"\u003e\n\u003cstrong\u003eGrade Comparison:\u003c\/strong\u003e BY1030 (Steel) | BY8020 (Stainless) | BYC25 (Cermet).\u003cbr\u003e\u003cstrong\u003eMaterial Matrix:\u003c\/strong\u003e Suitable for P, M, K class materials.\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":43622076645548,"sku":"S20R-SVQBL16","price":24.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_S20R-SVQBL16_107.5_degree_indexable_internal_profiling_boring_bar_left_hand_CNC_lathe_tool_holder_for_VBMT_160404_VBMT_160408_inserts.jpg?v=1779693492","url":"https:\/\/cnchome-beyond.com\/products\/beyond-s20r-svqbl16-boring-bar-cnc-internal-turning-tool-holder","provider":"CNCHome-Beyond","version":"1.0","type":"link"}