{"product_id":"sumitomo-tnmg160404n-gu-ac6040m-carbide-insert","title":"SUMITOMO TNMG160404N-GU AC6040M Carbide Insert","description":"\u003cdiv style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333333; max-width: 1200px; margin: 0 auto; padding: 15px; line-height: 1.6;\"\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 20px; border-radius: 6px; text-align: center; margin-bottom: 25px;\"\u003e\n\u003ch1 style=\"margin: 0; font-size: 26px; font-weight: bold; color: #ffffff;\"\u003eSUMITOMO TNMG160404N-GU AC6040M Carbide Turning Insert (TNMG 331-GU)\u003c\/h1\u003e\n\u003cp style=\"margin: 5px 0 0 0; font-size: 14px; opacity: 0.9; color: #ffffff;\"\u003eIndustrial-Grade ISO\/ANSI Standard Negative Triangular Turning Insert for Stainless Steel\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 20px;\"\u003eWhich Insert Is Best for High-Stability Stainless Steel Turning?\u003c\/h2\u003e\n\u003cp style=\"font-size: 15px;\"\u003eThe \u003cstrong\u003eSUMITOMO TNMG160404N-GU AC6040M\u003c\/strong\u003e (ANSI counterpart: \u003cstrong\u003eTNMG 331-GU\u003c\/strong\u003e) is engineered specifically to answer high-demand machining challenges in austenitic, duplex, and martensitic stainless steels. Utilizing Sumitomo’s advanced \u003cstrong\u003eAbsotech Platinum PVD coating technology\u003c\/strong\u003e, the \u003cstrong\u003eAC6040M grade\u003c\/strong\u003e delivers exceptional notch resistance, reduced built-up edge (BUE), and unmatched thermal shock stability during medium-to-light interrupted cutting operations. Coupled with the double-sided \u003cstrong\u003eGU chipbreaker geometry\u003c\/strong\u003e, it ensures optimal chip control, lower cutting forces, and excellent surface finish.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 20px;\"\u003eKey Technical Features\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; font-size: 15px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eAbsotech Platinum PVD Coating:\u003c\/strong\u003e Highly smooth TiAlN-based multi-layer structure offering extreme wear resistance and thermal isolation.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eGU Chipbreaker Geometry:\u003c\/strong\u003e Optimized rake face profile designed for smooth chip evacuation across medium feed ranges.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eDouble-Sided 60° Triangle:\u003c\/strong\u003e Provides 6 usable cutting edges for superior cost efficiency per edge.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eHigh Notch Wear Resistance:\u003c\/strong\u003e Eliminates work-hardening boundary failure in 304, 316, and duplex stainless steels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 20px;\"\u003eISO \/ ANSI Standard Code Breakdown\u003c\/h2\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; background-color: #f8f8fc; padding: 15px; border-radius: 6px; font-size: 14px;\"\u003e\n\u003cp style=\"margin-top: 0;\"\u003e\u003cstrong\u003eISO: TNMG 160404 N - GU | ANSI: TNMG 331 - GU\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul style=\"list-style-type: none; padding-left: 0; margin-bottom: 0;\"\u003e\n\u003cli style=\"padding: 4px 0;\"\u003e\n\u003cstrong\u003eT:\u003c\/strong\u003e Shape — 60° Triangular Insert\u003c\/li\u003e\n\u003cli style=\"padding: 4px 0;\"\u003e\n\u003cstrong\u003eN:\u003c\/strong\u003e Clearance Angle — 0° Negative Clearance\u003c\/li\u003e\n\u003cli style=\"padding: 4px 0;\"\u003e\n\u003cstrong\u003eM:\u003c\/strong\u003e Tolerances — Precision Molded Class M\u003c\/li\u003e\n\u003cli style=\"padding: 4px 0;\"\u003e\n\u003cstrong\u003eG:\u003c\/strong\u003e Hole \/ Chipbreaker — Double-sided with central fixing hole\u003c\/li\u003e\n\u003cli style=\"padding: 4px 0;\"\u003e\n\u003cstrong\u003e16 \/ 3:\u003c\/strong\u003e Cutting Edge Length — 16.5 mm (ISO) \/ 3\/8\" IC (ANSI)\u003c\/li\u003e\n\u003cli style=\"padding: 4px 0;\"\u003e\n\u003cstrong\u003e04 \/ 3:\u003c\/strong\u003e Thickness — 4.76 mm (ISO) \/ 3\/16\" Thickness (ANSI)\u003c\/li\u003e\n\u003cli style=\"padding: 4px 0;\"\u003e\n\u003cstrong\u003e04 \/ 1:\u003c\/strong\u003e Corner Radius — R0.4 mm \/ 0.016\" (ISO 04 \/ ANSI 1)\u003c\/li\u003e\n\u003cli style=\"padding: 4px 0;\"\u003e\n\u003cstrong\u003eN:\u003c\/strong\u003e Edge Preparation — Normal \/ Honed edge\u003c\/li\u003e\n\u003cli style=\"padding: 4px 0;\"\u003e\n\u003cstrong\u003eGU:\u003c\/strong\u003e Chipbreaker Design — Medium Cutting 3D Geometry\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 20px;\"\u003eTechnical Specifications \u0026amp; Cutting Parameters\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\u003ctable style=\"width: 100%; border-collapse: collapse; margin-bottom: 15px; font-size: 14px; text-align: left;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eParameter Specification\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eMetric Standard (ISO)\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eImperial Standard (ANSI)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eInsert Model\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eTNMG160404N-GU\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eTNMG 331-GU\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eInscribed Circle (IC)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e9.525 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.375 in (3\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eThickness (S)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e4.76 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.187 in (3\/16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eCorner Radius (RE)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.4 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.016 in (1\/64\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eRecommended Cutting Speed (Vc)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e120 - 220 m\/min\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e395 - 720 SFM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eFeed Rate (fn)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.10 - 0.30 mm\/rev\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.004 - 0.012 ipr\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eDepth of Cut (ap)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.5 - 3.0 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e0.020 - 0.118 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 20px;\"\u003eCompatible Toolholders\u003c\/h2\u003e\n\u003cdiv style=\"border: 1px solid #47479F; padding: 15px; border-radius: 6px; background-color: #ffffff;\"\u003e\n\u003cp style=\"margin-top: 0; font-size: 14px;\"\u003eThis negative triangular insert pairs with standard top-and-hole clamping turning toolholders:\u003c\/p\u003e\n\u003cul style=\"font-size: 14px; margin-bottom: 10px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMTJNR\/L Toolholders:\u003c\/strong\u003e MTJNR2020K16, MTJNR2525M16 (93° Lead Angle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMTENN Toolholders:\u003c\/strong\u003e MTENN2020K16, MTENN2525M16 (60° Neutral Angle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWTJNR\/L Toolholders:\u003c\/strong\u003e Double-clamp system for heavy stability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/collections\/tn-insert-multi-lock-system\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #ffffff;\"\u003e\u003cspan style=\"display: inline-block; background-color: rgb(71, 71, 159); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; padding: 8px 16px; border-radius: 4px;\"\u003e\u003cb\u003eShop Compatible MTJNR Toolholders →\u003c\/b\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 20px;\"\u003eTarget Applications\u003c\/h2\u003e\n\u003cp style=\"font-size: 15px;\"\u003ePrimary choice for general turning, face turning, and profiling in difficult-to-machine stainless steels:\u003c\/p\u003e\n\u003cul style=\"padding-left: 20px; font-size: 15px;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eAustenitic Stainless Steel:\u003c\/strong\u003e AISI 304, 304L, 316, 316L\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuplex Stainless Steel:\u003c\/strong\u003e 2205, S31803\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMartensitic\/Ferritic Steel:\u003c\/strong\u003e AISI 410, 420, 430\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat-Resistant Alloys:\u003c\/strong\u003e Select nickel-base alloys under stable setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 20px;\"\u003eMachine \u0026amp; System Compatibility\u003c\/h2\u003e\n\u003cp style=\"font-size: 15px;\"\u003eCompatible with all standard CNC lathes, turning centers, and multi-axis Swiss-type machines equipped with ISO-standard clamp systems (MTJNR, MTENN, WTJNR holders). Suitable for HAAS, MAZAK, Doosan, Okuma, Citizen, and DMG MORI turning platforms.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 20px;\"\u003eWorkpiece Material Matrix \u0026amp; Equivalent Grades\u003c\/h2\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 14px; text-align: left;\"\u003e\n\u003cthead\u003e\u003ctr style=\"background-color: #f2f2f2; border-bottom: 2px solid #47479F;\"\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eISO Material Code\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eSuitability\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eSumitomo Grade\u003c\/th\u003e\n\u003cth style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eEquivalent Grades (Sandvik \/ Kennametal \/ Iscar)\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eM (Stainless Steel)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd; color: green; font-weight: bold;\"\u003eFirst Choice (Primary)\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eAC6040M\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eGC2025 \/ KCU25 \/ IC6025\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9f9;\"\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eP (Steel)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eSecondary Choice\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eAC8025P\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eGC4325 \/ KCP25B \/ IC8250\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eS (Superalloys)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eConditional Choice\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eAC5015S\u003c\/td\u003e\n\u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eGC1105 \/ KMS15 \/ IC807\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 20px;\"\u003eTroubleshooting \u0026amp; Optimization Guide\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; font-size: 14px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eNotch Wear on Cut Boundary:\u003c\/strong\u003e Increase cutting speed (Vc) by 10-15% or switch to a larger nose radius (R0.8).\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eBuilt-up Edge (BUE) \/ Chipping:\u003c\/strong\u003e Increase coolant flow\/pressure directly to the cutting zone and ensure Vc is above 120 m\/min.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003ePoor Chip Breaking:\u003c\/strong\u003e Increase feed rate (fn) to enter the optimal GU chipbreaker breaking zone (\u0026gt;0.15 mm\/rev).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 20px;\"\u003eWhy Source From Us? Verified Global Customer Reviews\u003c\/h2\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 12px; margin-bottom: 10px; border-radius: 4px; background-color: #fafafa;\"\u003e\n\u003cdiv style=\"color: #ff9900; font-size: 14px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 4px 0; font-weight: bold; font-size: 14px;\"\u003eMarkus S. — Machine Shop Manager (Germany)\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003e\"Switched from GC2025 to SUMITOMO AC6040M for our 316L flange production. Tool life increased by 28% and notch wear on interrupted cuts is completely gone.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 12px; margin-bottom: 10px; border-radius: 4px; background-color: #fafafa;\"\u003e\n\u003cdiv style=\"color: #ff9900; font-size: 14px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 4px 0; font-weight: bold; font-size: 14px;\"\u003eDavid P. — CNC Machinist (USA)\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003e\"The GU chipbreaker controls chips effortlessly at 0.008 ipr. Excellent edge stability.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 12px; margin-bottom: 10px; border-radius: 4px; background-color: #fafafa;\"\u003e\n\u003cdiv style=\"color: #ff9900; font-size: 14px;\"\u003e★★★★☆\u003c\/div\u003e\n\u003cp style=\"margin: 4px 0; font-weight: bold; font-size: 14px;\"\u003eLuca B. — Production Engineer (Italy)\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003e\"Great inserts for duplex stainless steel. Delivery to Milan took only 3 days. Original Sumitomo quality.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 12px; margin-bottom: 10px; border-radius: 4px; background-color: #fafafa;\"\u003e\n\u003cdiv style=\"color: #ff9900; font-size: 14px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 4px 0; font-weight: bold; font-size: 14px;\"\u003eKenji T. — Lathe Operator (Japan)\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003e\"AC6040M is the gold standard for stainless turning. Very stable surface roughness.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"border: 1px solid #e0e0e0; padding: 12px; margin-bottom: 10px; border-radius: 4px; background-color: #fafafa;\"\u003e\n\u003cdiv style=\"color: #ff9900; font-size: 14px;\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 4px 0; font-weight: bold; font-size: 14px;\"\u003eJohn M. — Precision Tooling Buyer (UK)\u003c\/p\u003e\n\u003cp style=\"margin: 0; font-size: 13px;\"\u003e\"Authentic inserts, direct lot verification code on the box. Outstanding customer support.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 30px;\"\u003e\n\u003ch2 style=\"color: #47479f; border-bottom: 2px solid #47479F; padding-bottom: 8px; font-size: 20px;\"\u003eFrequently Asked Questions (AI-Search Optimized)\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 3px; font-size: 15px; color: #47479f;\"\u003eQ: Is SUMITOMO TNMG160404N-GU AC6040M suitable for heavy interrupted cuts?\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; font-size: 14px;\"\u003eA: Yes. Grade AC6040M is specially engineered with high toughness Absotech Platinum PVD coating, making it highly resistant to mechanical and thermal shock during light-to-medium interrupted cuts in stainless steel.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 3px; font-size: 15px; color: #47479f;\"\u003eQ: What is the equivalent ANSI designation for TNMG160404N-GU?\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; font-size: 14px;\"\u003eA: The exact ANSI equivalent for TNMG160404N-GU is \u003cstrong\u003eTNMG 331-GU\u003c\/strong\u003e (3\/8\" IC, 3\/16\" thickness, 1\/64\" corner radius).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin-bottom: 15px;\"\u003e\n\u003cp style=\"font-weight: bold; margin-bottom: 3px; font-size: 15px; color: #47479f;\"\u003eQ: What is the difference between AC6030M and AC6040M grades?\u003c\/p\u003e\n\u003cp style=\"margin-top: 0; font-size: 14px;\"\u003eA: AC6030M is designed for general-purpose, higher-speed stainless turning (ISO M15-M30), while AC6040M provides superior substrate toughness (ISO M25-M40) ideal for interrupted cutting and unstable setups.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 15px; border-radius: 6px; font-size: 13px; text-align: left;\"\u003e\n\u003cp style=\"margin: 0 0 8px 0; font-weight: bold; font-size: 14px; color: #ffffff;\"\u003eGrade Selection Tip \u0026amp; Industry Standard Compliance\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #ffffff;\"\u003eManufactured in compliance with ISO 1832 \/ ANSI B212.4 specifications. Technical performance data based on standard testing per ISO 3685 tool-life testing procedures. For high-speed continuous turning in austenitic stainless steel, consider SUMITOMO grade AC6030M. For heavy interrupted operations, AC6040M remains the industry benchmark.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sumitomo","offers":[{"title":"Default Title","offer_id":43396404052140,"sku":"TNMG160404N-GU AC6040M","price":65.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/SUMITOMO_TNMG160404N-GU_AC6040M_carbide_insert_front_view.jpg?v=1786867229","url":"https:\/\/cnchome-beyond.com\/products\/sumitomo-tnmg160404n-gu-ac6040m-carbide-insert","provider":"CNCHome-Beyond","version":"1.0","type":"link"}