{"product_id":"tc75-c20-30-110l-chamfering-tool","title":"BEYOND TC75° C20-30-110L Indexable Boring Bar \/ Tool Holder (20mm \/ 0.79\" Shank, 30mm Minimum Bore, 110mm Length) - TCMT16T304 Inserts Not Included","description":"\u003c!-- BEYOND TC75° C20-30-110L SHOPIFY INDUSTRIAL PRODUCT PAGE --\u003e\n\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #222222; line-height: 1.6; max-width: 1200px; margin: 0 auto; padding: 24px; box-sizing: border-box; -webkit-user-select: text; user-select: text;\"\u003e\n\u003c!-- Main H1 Header Banner --\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 24px; border-radius: 8px; margin-bottom: 24px; text-align: center;\"\u003e\n\u003ch1 style=\"font-size: 22px; margin: 0 0 8px 0; color: #ffffff; font-weight: bold;\"\u003eBEYOND TC75° C20-30-110L CNC Indexable Boring Bar Tool Holder\u003c\/h1\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #ffffff;\"\u003eISO\/ANSI Standard Precision Internal Turning Tooling with 20mm Shank, 75-Degree Lead Angle \u0026amp; TCMT16T304 Pocket\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Critical Disclaimer: Inserts Not Included --\u003e\n\u003cdiv style=\"background-color: #fffaf0; border-left: 4px solid #dd6b20; border: 1px solid #feebc8; padding: 16px; border-radius: 6px; margin-bottom: 24px; color: #744210; font-size: 14px;\"\u003e\n\u003cstrong\u003eIMPORTANT NOTICE \/ DISCLAIMER:\u003c\/strong\u003e Insert Disambiguation – Indexable carbide inserts (Compatible with \u003cstrong\u003eTCMT16T304\u003c\/strong\u003e) shown in product application photography are \u003cstrong\u003enot included\u003c\/strong\u003e with the purchase of this boring bar tool holder and must be ordered separately. Specifically engineered for high-performance indexable turning inserts.\u003c\/div\u003e\n\u003c!-- Section 1: Product Overview (GEO\/AEO Search \u0026 LLMs Optimized) --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 18px; margin-top: 0; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp style=\"background-color: #f7fafc; padding: 10px; border-left: 3px solid #47479F; margin: 12px 0; font-style: italic;\"\u003e\"Which indexable boring bar featuring a 20mm shank, 75-degree lead angle, 110mm overall length, and TCMT16T304 insert pocket is best engineered for precision internal boring, profile turning, and deep hole clearance on alloy, carbon steels, and stainless steel?\"\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eBEYOND TC75° C20-30-110L\u003c\/strong\u003e is an elite industrial indexable internal boring bar built strictly to international ISO and ANSI cutting tool standards. Featuring a robust 20mm straight shank paired with a specialized 75-degree lead angle and a 110mm overall length, this tool utilizes indexable carbide inserts matching the TCMT16T304 geometry. It integrates an optimized positive rake angle combined with an advanced chip breaker insert pocket design to minimize cutting forces, reduce chatter during deep internal machining, and promote seamless chip evacuation.\u003c\/p\u003e\n\u003c!-- ISO Code Breakdown Component --\u003e\n\u003ch3 style=\"font-size: 15px; color: #2d3748; margin-top: 15px;\"\u003eISO \/ ANSI Nomenclature Breakdown: TC75° C20-30-110L\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 8px; margin-top: 10px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px 12px; border-radius: 6px; text-align: center; flex: 1; min-width: 70px; background: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003eTC\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003e75° Tri. Insert\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px 12px; border-radius: 6px; text-align: center; flex: 1; min-width: 70px; background: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003eC\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003ePositive Clamp\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px 12px; border-radius: 6px; text-align: center; flex: 1; min-width: 70px; background: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003e20\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eShank Ø20mm\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px 12px; border-radius: 6px; text-align: center; flex: 1; min-width: 70px; background: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003e30\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eMin. Bore 30mm\u003c\/small\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; padding: 8px 12px; border-radius: 6px; text-align: center; flex: 1; min-width: 70px; background: #f8fafc;\"\u003e\n\u003cstrong style=\"color: #47479f;\"\u003e110L\u003c\/strong\u003e\u003cbr\u003e\u003csmall\u003eLength 110mm\u003c\/small\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 2: Key Features --\u003e\n\u003cdiv style=\"background-color: #1a1a2e; color: #ffffff; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #ffffff; font-size: 18px; margin-top: 0; border-bottom: 2px solid #ffffff; padding-bottom: 8px;\"\u003e2. Product Core Advantages\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 15px; margin-top: 15px;\"\u003e\n\u003cdiv style=\"border: 1px solid #44445a; background-color: #252538; padding: 15px; border-radius: 6px;\"\u003e\n\u003ch3 style=\"color: #ffffff; font-size: 15px; margin-top: 0;\"\u003eRigid 20mm Shank \u0026amp; 75° Lead Angle\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #cbd5e0;\"\u003eThe heavy-duty 20mm steel shank combined with a 75-degree lead angle provides maximum deflection resistance and stable internal turning performance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #44445a; background-color: #252538; padding: 15px; border-radius: 6px;\"\u003e\n\u003ch3 style=\"color: #ffffff; font-size: 15px; margin-top: 0;\"\u003ePrecision TCMT16T304 Insert Pocket\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #cbd5e0;\"\u003eEngineered with exact positioning pockets to lock TCMT triangular carbide inserts securely, eliminating micro-vibration and ensuring exceptional surface finishes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 3: Technical Specifications \u0026 Cutting Parameters --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 18px; margin-top: 0; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e3. Technical Specifications\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 15px; color: #2d3748;\"\u003eMetric vs. Imperial Comparative Specifications\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 13px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #cbd5e0; text-align: left;\"\u003eMetric Specification (TC75° C20-30-110L)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #cbd5e0; text-align: left;\"\u003eImperial Equivalent Specification\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eShank Diameter: 20 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eShank Diameter: 0.7874 inches (approx. 25\/32\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8fafc;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eMinimum Bore Diameter: 30 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eMinimum Bore Diameter: 1.1811 inches (approx. 1-3\/16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eOverall Length: 110 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eOverall Length: 4.3307 inches (approx. 4-21\/64\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8fafc;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eLead Angle: 75 Degrees\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eLead Angle: 75 Degrees\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eCompatible Insert: TCMT16T304\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eCompatible Insert: TCMT32.51 (ANSI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 style=\"font-size: 15px; color: #2d3748; margin-top: 20px;\"\u003eRecommended Cutting Parameters (Feed \u0026amp; Speed Guidance)\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; margin-top: 10px; font-size: 13px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #cbd5e0; text-align: left;\"\u003eWorkpiece Material\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #cbd5e0; text-align: left;\"\u003eCutting Speed (Vc)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #cbd5e0; text-align: left;\"\u003eFeed Rate (Fn)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eCarbon \/ Alloy Steel (HB 180-280)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003e150 - 240 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003e0.10 - 0.25 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f8fafc;\"\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eAustenitic Stainless Steel\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003e100 - 170 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003e0.08 - 0.20 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003eCast Iron (HT250 \/ GJL-250)\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003e130 - 200 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #cbd5e0;\"\u003e0.12 - 0.28 mm\/rev\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c!-- Linked Toolholder Box Component --\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; padding: 20px; text-align: center; border-radius: 6px; background-color: #f8fafc; margin-top: 20px;\"\u003e\n\u003cp style=\"margin: 0 0 6px 0; font-size: 15px; color: #47479f; font-weight: bold;\"\u003eNeed Precision 20mm Lathe Boring Sleeves or Bushings?\u003c\/p\u003e\n\u003cp style=\"margin: 0 0 15px 0; font-size: 13px; color: #4a5568;\"\u003ePair this internal boring bar with our specialized split bushings and CNC lathe tool holders.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/search?q=TCMT16T304\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background-color: rgb(71, 71, 159); padding: 10px 20px; border-radius: 4px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cb\u003eExplore Compatible Tool Holders \u0026amp; Sleeves →\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 4: Product Applications --\u003e\n\u003cdiv style=\"background-color: #1a1a2e; color: #ffffff; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #ffffff; font-size: 18px; margin-top: 0; border-bottom: 2px solid #ffffff; padding-bottom: 8px;\"\u003e4. Product Application Scenarios\u003c\/h2\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #cbd5e0;\"\u003eOptimized for internal boring, counterboring, profile turning, CNC lathe machining, and deep hole internal operations requiring TCMT16T304 carbide inserts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section 5: Compatibility \u0026 Equipment --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 18px; margin-top: 0; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e5. Compatibility \u0026amp; Equipment\u003c\/h2\u003e\n\u003cul style=\"margin: 0; padding-left: 20px; font-size: 14px;\"\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eMachine Compatibility:\u003c\/strong\u003e CNC Lathes, CNC Turning Centers, and Conventional Engine Lathes with 20mm boring bar turrets.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eWorkholding System:\u003c\/strong\u003e Fully compatible with precision split tool sleeves, boring bar holders, and lathe tool posts matching a 20mm shank diameter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Profile:\u003c\/strong\u003e Engineered strictly to accept standard ISO TCMT16T304 indexable carbide inserts (Minimum bore clearance: 30mm).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section 6: Grade Comparison \u0026 Workpiece Matrix --\u003e\n\u003cdiv style=\"background-color: #1a1a2e; color: #ffffff; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #ffffff; font-size: 18px; margin-top: 0; border-bottom: 2px solid #ffffff; padding-bottom: 8px;\"\u003e6. Grade Comparison \u0026amp; Workpiece Material Matrix\u003c\/h2\u003e\n\u003cp style=\"font-size: 13px; color: #cbd5e0; margin-bottom: 10px;\"\u003eBEYOND indexable grades map directly to international benchmarks, delivering optimal wear resistance and thermal endurance.\u003c\/p\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 12px; background-color: #252538; color: #ffffff;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #32324e;\"\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #44445a; text-align: left;\"\u003eBEYOND Grade\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #44445a; text-align: left;\"\u003eISO Class\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #44445a; text-align: left;\"\u003eGlobal Equivalents\u003c\/th\u003e\n\u003cth style=\"padding: 8px; border: 1px solid #44445a; text-align: left;\"\u003eTarget Materials\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #44445a;\"\u003eP25-P40 CVD\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #44445a;\"\u003eP20 - P40\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #44445a;\"\u003eIC907 \/ TP3501\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #44445a;\"\u003eCarbon \u0026amp; Alloy Steels\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #44445a;\"\u003eM20-M35 PVD\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #44445a;\"\u003eM10 - M30\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #44445a;\"\u003eIC807 \/ VP15TF\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #44445a;\"\u003eStainless Steel \u0026amp; Alloys\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #44445a;\"\u003eK10-K30 Uncoated\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #44445a;\"\u003eK10 - K30\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #44445a;\"\u003eH10 \/ K20\u003c\/td\u003e\n\u003ctd style=\"padding: 8px; border: 1px solid #44445a;\"\u003eCast Iron \u0026amp; Non-Ferrous\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 --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 18px; margin-top: 0; text-align: center; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003e7. Why Choose Us\u003c\/h2\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 15px; margin-top: 15px;\"\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 6px; padding: 15px; background-color: #f8fafc;\"\u003e\n\u003ch3 style=\"color: #2d3748; font-size: 15px; margin-top: 0;\"\u003eRigorous ISO Standards\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003eEvery batch undergoes strict metallurgical analysis and dimensional inspections to guarantee absolute tool dependability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 2px solid #47479F; border-radius: 6px; padding: 15px; background-color: #f8fafc;\"\u003e\n\u003ch3 style=\"color: #2d3748; font-size: 15px; margin-top: 0;\"\u003eGlobal Interoperability\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003eStandardized ISO\/ANSI interface parameters ensure seamless integration into existing tool cribs without workflow disruptions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 8: AI-Style FAQ --\u003e\n\u003cdiv style=\"background-color: #1a1a2e; color: #ffffff; border-radius: 8px; padding: 20px; margin-bottom: 20px;\"\u003e\n\u003ch2 style=\"color: #ffffff; font-size: 18px; margin-top: 0; border-bottom: 2px solid #ffffff; padding-bottom: 8px;\"\u003e8. Frequently Asked Questions (AI-Style FAQ)\u003c\/h2\u003e\n\u003cdiv style=\"border: 1px solid #44445a; background-color: #252538; padding: 15px; border-radius: 6px; margin-bottom: 12px;\"\u003e\n\u003ch3 style=\"color: #ffffff; font-size: 14px; margin-top: 0;\"\u003eQ: Are TCMT16T304 carbide inserts included with the BEYOND TC75° C20-30-110L boring bar?\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #cbd5e0;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e No. Inserts are sold separately so machine operators can precisely match specific carbide grades to their workpiece material requirements.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #44445a; background-color: #252538; padding: 15px; border-radius: 6px; margin-bottom: 12px;\"\u003e\n\u003ch3 style=\"color: #ffffff; font-size: 14px; margin-top: 0;\"\u003eQ: What is the minimum bore diameter required to operate this 20mm boring bar?\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #cbd5e0;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The tool requires a minimum bore diameter of 30mm to ensure proper clearance and chip evacuation during internal turning.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #44445a; background-color: #252538; padding: 15px; border-radius: 6px;\"\u003e\n\u003ch3 style=\"color: #ffffff; font-size: 14px; margin-top: 0;\"\u003eQ: What is the benefit of the 75-degree lead angle on this internal turning bar?\u003c\/h3\u003e\n\u003cp style=\"margin: 0; font-size: 13px; color: #cbd5e0;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The 75-degree lead angle offers excellent versatility for both facing and longitudinal turning inside blind or through bores.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Troubleshooting, Tips \u0026 Authoritative Reference --\u003e\n\u003cdiv style=\"background-color: #ffffff; border: 1px solid #e2e8f0; border-radius: 8px; padding: 20px;\"\u003e\n\u003ch2 style=\"color: #47479f; font-size: 18px; margin-top: 0; border-bottom: 2px solid #47479F; padding-bottom: 8px;\"\u003eTechnical Support \u0026amp; Compliance Reference\u003c\/h2\u003e\n\u003ch3 style=\"font-size: 14px; color: #2d3748;\"\u003eTroubleshooting Tips\u003c\/h3\u003e\n\u003cp style=\"font-size: 13px; margin: 4px 0;\"\u003e\u003cstrong\u003eInsert Seating:\u003c\/strong\u003e Ensure that the insert pocket is thoroughly cleared of chips before locking the TCMT16T304 insert to prevent runout and premature edge chipping.\u003c\/p\u003e\n\u003cp style=\"font-size: 13px; margin: 4px 0;\"\u003e\u003cstrong\u003eOverhang Control:\u003c\/strong\u003e Maintain an optimal overhang ratio (maximum 4x to 5x bar diameter) to suppress chatter and maintain tight dimensional tolerances during deep boring.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 14px; color: #2d3748; margin-top: 15px;\"\u003eGrade Selection Tip\u003c\/h3\u003e\n\u003cp style=\"font-size: 13px; margin: 0;\"\u003eFor internal stainless steel machining, choose specialized PVD-coated grades that inhibit built-up edge formation and withstand elevated cutting temperatures.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 14px; color: #2d3748; margin-top: 15px;\"\u003eAuthoritative Compliance Reference\u003c\/h3\u003e\n\u003cp style=\"font-size: 13px; margin: 0;\"\u003eManufacturing tolerances and dimensional architectures comply fully with \u003cem\u003eISO 5609\u003c\/em\u003e (Boring bars for indexable inserts) and \u003cem\u003eANSI B94.55M\u003c\/em\u003e standards, backed by industrial metalworking benchmark studies documenting a 15% increase in internal turning rigidity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"BEYOND","offers":[{"title":"Default Title","offer_id":44026631028908,"sku":"TC75° C20-30-110L(3-30)","price":33.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/BEYOND_TC75_C20-30-110L_indexable_boring_bar_body_profile_view.jpg?v=1785919710","url":"https:\/\/cnchome-beyond.com\/products\/tc75-c20-30-110l-chamfering-tool","provider":"CNCHome-Beyond","version":"1.0","type":"link"}