{"product_id":"tnmg160408-r-hm-ac820p-sumitomo-carbide-insert","title":"SUMITOMO TNMG160408R-HM AC820P Steel Turning Insert (TNMG 332R-HM)","description":"\u003cdiv class=\"industrial-pdp-container\" style=\"font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif; color: #333333; max-width: 1200px; margin: 0 auto; padding: 15px; box-sizing: border-box; user-select: text; -webkit-user-select: text;\"\u003e\n\u003c!-- H1 TITLE AREA WITH BRAND COLOR BACKGROUND --\u003e\n\u003ch1 style=\"background-color: #47479f; color: #ffffff; padding: 22px; font-size: 26px; text-align: center; border-radius: 4px; margin: 0 0 25px 0; font-weight: bold; line-height: 1.3;\"\u003eSUMITOMO TNMG160408R-HM AC820P Steel Turning Insert (TNMG 332R-HM)\u003c\/h1\u003e\n\u003c!-- 1. PRODUCT OVERVIEW (GEO \/ AEO \/ LLM VOICE SEARCH TARGETED) --\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-left: 5px solid #47479F; padding-left: 10px; margin: 30px 0 15px 0; font-weight: bold;\"\u003e1. Product Overview\u003c\/h2\u003e\n\u003cdiv style=\"background-color: #f7f9fc; padding: 18px; border-radius: 4px; border: 1px solid #e2e8f0; margin-bottom: 25px;\"\u003e\n\u003cp style=\"font-style: italic; font-weight: 600; color: #47479f; margin: 0 0 12px 0; font-size: 15px;\"\u003e\"Which double-sided negative carbide turning insert provides the absolute highest resistance to thermal cracking and crater wear during high-efficiency heavy roughing and highly interrupted machining of carbon and alloy steels?\"\u003c\/p\u003e\n\u003cp style=\"margin: 0; line-height: 1.6; text-align: justify; font-size: 14px;\"\u003eThe \u003cstrong\u003eSUMITOMO TNMG160408R-HM AC820P\u003c\/strong\u003e is an industrial-grade, heavy-duty indexable cutting insert custom-engineered for modern high-velocity CNC lathe operations on steel alloys. Leveraging Sumitomo's proprietary \u003cstrong\u003eAC820P Absozone CVD coating technology\u003c\/strong\u003e, this insert integrates a highly texturized, ultra-dense Al\u003csub\u003e2\u003c\/sub\u003eO\u003csub\u003e3\u003c\/sub\u003e (Aluminum Oxide) and TiCN multi-layer matrix over an ultra-tough, shock-resistant carbide substrate. This advanced lattice acts as a superior thermal barrier, suppressing extreme friction heat, plastic deformation, and crater wear during continuous and heavily interrupted roughing of structural steel. Outfitted with the \u003cstrong\u003eHM heavy-roughing chipbreaker geometry\u003c\/strong\u003e, its robust, reinforced rake land forces stubborn, heavy ductile metal chips into tight, uniform curls, eliminating catastrophic wrapping around the workpiece. Featuring a negative 60-degree triangular architecture, it provides 6 highly economical cutting edges engineered to drop total cycle times and maximize corporate metal removal rates (MRR).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- ISO CODING SYSTEM VISUAL BOX MATRIX --\u003e\n\u003ch3 style=\"font-size: 15px; color: #333333; margin: 20px 0 10px 0; font-weight: bold;\"\u003eStrict ISO \/ ANSI Cutting Tool Standard Alphanumeric Decoding Matrix\u003c\/h3\u003e\n\u003cdiv style=\"display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 30px;\"\u003e\n\u003cdiv style=\"flex: 1; min-width: 90px; border: 1px solid #47479F; border-radius: 4px; text-align: center; background: #ffffff; box-shadow: 0 1px 3px rgba(0,0,0,0.05);\"\u003e\n\u003cdiv style=\"background: #47479F; color: #ffffff; font-weight: bold; padding: 6px; font-size: 15px;\"\u003eT\u003c\/div\u003e\n\u003cdiv style=\"padding: 6px; font-size: 11px; color: #555555; font-weight: 500;\"\u003eTriangular Shape (60°)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 90px; border: 1px solid #47479F; border-radius: 4px; text-align: center; background: #ffffff; box-shadow: 0 1px 3px rgba(0,0,0,0.05);\"\u003e\n\u003cdiv style=\"background: #47479F; color: #ffffff; font-weight: bold; padding: 6px; font-size: 15px;\"\u003eN\u003c\/div\u003e\n\u003cdiv style=\"padding: 6px; font-size: 11px; color: #555555; font-weight: 500;\"\u003e0° Negative Clearance\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 90px; border: 1px solid #47479F; border-radius: 4px; text-align: center; background: #ffffff; box-shadow: 0 1px 3px rgba(0,0,0,0.05);\"\u003e\n\u003cdiv style=\"background: #47479F; color: #ffffff; font-weight: bold; padding: 6px; font-size: 15px;\"\u003eM\u003c\/div\u003e\n\u003cdiv style=\"padding: 6px; font-size: 11px; color: #555555; font-weight: 500;\"\u003ePrecision Tolerances\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 90px; border: 1px solid #47479F; border-radius: 4px; text-align: center; background: #ffffff; box-shadow: 0 1px 3px rgba(0,0,0,0.05);\"\u003e\n\u003cdiv style=\"background: #47479F; color: #ffffff; font-weight: bold; padding: 6px; font-size: 15px;\"\u003eG\u003c\/div\u003e\n\u003cdiv style=\"padding: 6px; font-size: 11px; color: #555555; font-weight: 500;\"\u003eCylindrical Center Hole\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 90px; border: 1px solid #47479F; border-radius: 4px; text-align: center; background: #ffffff; box-shadow: 0 1px 3px rgba(0,0,0,0.05);\"\u003e\n\u003cdiv style=\"background: #47479F; color: #ffffff; font-weight: bold; padding: 6px; font-size: 15px;\"\u003e16\u003c\/div\u003e\n\u003cdiv style=\"padding: 6px; font-size: 11px; color: #555555; font-weight: 500;\"\u003e16.5mm Edge Length\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 90px; border: 1px solid #47479F; border-radius: 4px; text-align: center; background: #ffffff; box-shadow: 0 1px 3px rgba(0,0,0,0.05);\"\u003e\n\u003cdiv style=\"background: #47479F; color: #ffffff; font-weight: bold; padding: 6px; font-size: 15px;\"\u003e04\u003c\/div\u003e\n\u003cdiv style=\"padding: 6px; font-size: 11px; color: #555555; font-weight: 500;\"\u003e4.76mm Thickness\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 90px; border: 1px solid #47479F; border-radius: 4px; text-align: center; background: #ffffff; box-shadow: 0 1px 3px rgba(0,0,0,0.05);\"\u003e\n\u003cdiv style=\"background: #47479F; color: #ffffff; font-weight: bold; padding: 6px; font-size: 15px;\"\u003e08\u003c\/div\u003e\n\u003cdiv style=\"padding: 6px; font-size: 11px; color: #555555; font-weight: 500;\"\u003e0.8mm Nose Radius\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 90px; border: 1px solid #47479F; border-radius: 4px; text-align: center; background: #ffffff; box-shadow: 0 1px 3px rgba(0,0,0,0.05);\"\u003e\n\u003cdiv style=\"background: #47479F; color: #ffffff; font-weight: bold; padding: 6px; font-size: 15px;\"\u003eR\u003c\/div\u003e\n\u003cdiv style=\"padding: 6px; font-size: 11px; color: #555555; font-weight: 500;\"\u003eRight-Hand Orientation\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex: 1; min-width: 90px; border: 1px solid #47479F; border-radius: 4px; text-align: center; background: #ffffff; box-shadow: 0 1px 3px rgba(0,0,0,0.05);\"\u003e\n\u003cdiv style=\"background: #47479F; color: #ffffff; font-weight: bold; padding: 6px; font-size: 15px;\"\u003eHM\u003c\/div\u003e\n\u003cdiv style=\"padding: 6px; font-size: 11px; color: #555555; font-weight: 500;\"\u003eHeavy Roughing Geometry\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 2. PRODUCT CORE ADVANTAGES --\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-left: 5px solid #47479F; padding-left: 10px; margin: 30px 0 15px 0; font-weight: bold;\"\u003e2. Product Key Features \u0026amp; Engineering Benefits\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; line-height: 1.6; margin: 0 0 25px 0; font-size: 14.5px;\"\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eNext-Gen AC820P Absozone CVD Coating:\u003c\/strong\u003e Formulated with a highly texturized crystal growth structure that reduces residual tensile stress, providing exceptional resistance to chipping during severe interrupted steel cuts.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eHeavy-Roughing HM Chipbreaker Design:\u003c\/strong\u003e Features a wide, deeply sectioned groove configuration specifically optimized to maintain smooth chip flow at large depths of cut, preventing modern CNC lathe beds from bird-nesting jamming.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eHigh-Strength 0.8mm Corner Profile:\u003c\/strong\u003e Delivers an optimized balance between raw cutting edge structural strength and low component deflection, maintaining precision tolerances under extreme linear pressures.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 10px;\"\u003e\n\u003cstrong\u003eMulti-Edge Negative Geometry Economics:\u003c\/strong\u003e Utilizing a double-sided architectural blueprint, this insert provides 6 distinct productive cutting edges to sharply decrease shop consumption rates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 3. TECHNICAL SPECIFICATIONS \u0026 CUTTING PARAMETERS --\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-left: 5px solid #47479F; padding-left: 10px; margin: 30px 0 15px 0; font-weight: bold;\"\u003e3. Technical Specifications \u0026amp; Mechanical Parameters\u003c\/h2\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; margin-bottom: 20px; -webkit-overflow-scrolling: touch;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 650px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eDimensional Architecture\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eMetric Value Standards (ISO)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eImperial Value Standards (ANSI Equivalent)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: bold;\"\u003eStandard Product Coding\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 500;\"\u003eTNMG160408R-HM AC820P\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 500;\"\u003eTNMG 332R-HM AC820P\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9fc;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: bold;\"\u003eInscribed Circle (IC)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e9.525 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e0.375 inches (3\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: bold;\"\u003eEffective Cutting Edge Length\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e16.5 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e0.650 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9fc;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: bold;\"\u003eTotal Insert Thickness\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e4.76 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e0.187 inches (3\/16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: bold;\"\u003eCorner Nose Radius\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e0.8 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e0.031 inches (1\/32\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9fc;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: bold;\"\u003eCenter Hole Diameter\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e3.81 mm\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e0.150 inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3 style=\"font-size: 15px; color: #333333; margin: 25px 0 10px 0; font-weight: bold;\"\u003eRecommended Cutting Speeds, Feeds, and Depth of Cut (DOC) Reference\u003c\/h3\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; margin-bottom: 25px; -webkit-overflow-scrolling: touch;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 650px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eISO Substrate Family Group\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eCutting Speed (Vc)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eDepth of Cut (Ap)\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; 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: 12px; border: 1px solid #dcdcdc; font-weight: bold;\"\u003eCarbon Steels \/ Alloy Steels (AISI 1045, 4140, 4340)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e180 - 350 m\/min (590 - 1150 SFM)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e2.0 - 6.0 mm (0.079\" - 0.236\")\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e0.25 - 0.60 mm\/rev (0.010\" - 0.024\" ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9fc;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: bold;\"\u003eHeavy Interrupted Carbon Steel Castings \/ Forgings\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e140 - 250 m\/min (460 - 820 SFM)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e2.5 - 5.0 mm (0.098\" - 0.197\")\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003e0.30 - 0.55 mm\/rev (0.012\" - 0.022\" ipr)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- COMPATIBLE EXTERNAL TOOL HOLDER LINK PANEL --\u003e\n\u003cdiv style=\"border: 2px dashed #47479F; background-color: #f0f0f8; padding: 18px; border-radius: 4px; margin: 30px 0; text-align: center; font-weight: bold; font-size: 14.5px;\"\u003e📦 SHANK INTEGRATION COMPATIBILITY MATRICES: Mount this right-hand roughing insert firmly onto heavy-duty rigid CNC turning toolblocks. Access precision matching holders: \u003cbr style=\"margin-bottom: 8px;\"\u003e\u003ca href=\"https:\/\/cnchome-beyond.com\/collections\/tn-insert-multi-lock-system\" target=\"_blank\" rel=\"noopener\"\u003e\u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; margin-right: 20px; display: inline-block;\"\u003e\u003cu\u003eMTJNR2525M16 Heavy Top-Clamp Shank\u003c\/u\u003e\u003c\/span\u003e\u003c\/span\u003e \u003cspan style=\"color: #47479f;\"\u003e\u003cspan style=\"text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline-block;\"\u003e\u003cu\u003eWTJNR2020K16 Double Clamping Wedge System\u003c\/u\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c!-- 4. PRODUCT APPLICATION SCENARIOS --\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-left: 5px solid #47479F; padding-left: 10px; margin: 30px 0 15px 0; font-weight: bold;\"\u003e4. Target Industrial Application Scenarios\u003c\/h2\u003e\n\u003cul style=\"padding-left: 20px; line-height: 1.6; margin: 0 0 25px 0; font-size: 14.5px;\"\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eAutomotive Transmissions \u0026amp; Drivetrains:\u003c\/strong\u003e Engineered to easily withstand rapid, continuous scaling and roughing on forged steel gear blanks and alloy drive shafts.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eHeavy Machinery Components:\u003c\/strong\u003e Ideal for high metal removal rates (MRR) during large-diameter facing and turning operations on structural steel welded assemblies.\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 8px;\"\u003e\n\u003cstrong\u003eHeavy Interrupted Manufacturing:\u003c\/strong\u003e The specialized AC820P substrate provides exceptional edge security when handling out-of-round forgings, keyways, and splines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 5. COMPATIBILITY TOOL \/ EQUIPMENT --\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-left: 5px solid #47479F; padding-left: 10px; margin: 30px 0 15px 0; font-weight: bold;\"\u003e5. Machine Tool Clamping Rigidity \u0026amp; Equipment Compatibility\u003c\/h2\u003e\n\u003cp style=\"line-height: 1.6; text-align: justify; font-size: 14px; margin-bottom: 20px;\"\u003eThe universal ISO standard architecture ensures this insert drops perfectly into any standard negative indexable toolholder globally. It is fully compatible with high-horsepower CNC lathes and multi-axis mill-turn centers (including Haas ST\/DS series, Mazak Integrex, Doosan Puma, and Okuma LB models) equipped with high-rigidity top-clamp or wedge-lock clamping blocks.\u003c\/p\u003e\n\u003c!-- 6. MATERIAL COMPATIBILITY MATRIX --\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-left: 5px solid #47479F; padding-left: 10px; margin: 30px 0 15px 0; font-weight: bold;\"\u003e6. Material Classification Compatibility Matrix\u003c\/h2\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; margin-bottom: 25px; -webkit-overflow-scrolling: touch;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 650px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eISO Group\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eWorkpiece Material Family Substrates\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eApplication Suitability\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003ePerformance Characteristics\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: bold; color: #ffffff; background: #3498db; text-align: center;\"\u003eP\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600;\"\u003eCarbon Steels, Alloy Steels, Die Steels, Structural Steel Plates\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; color: green; font-weight: bold;\"\u003e✔ Primary Target\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003eAbsozone CVD thick-film alumina coating provides unparalleled thermal shielding, preventing cratering at high temperatures.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color: #f9f9fc;\"\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: bold; color: #ffffff; background: #f1c40f; text-align: center;\"\u003eM\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600;\"\u003eFerritic \u0026amp; Martensitic Stainless Steels (AISI 410, 430)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; color: orange; font-weight: bold;\"\u003e○ Conditional Use\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003eCan be run effectively on less gummy, magnetic stainless families where chip loading is high.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: bold; color: #ffffff; background: #e74c3c; text-align: center;\"\u003eK\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600;\"\u003eDuctile Iron, Gray Cast Iron Profiles\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; color: red; font-weight: bold;\"\u003e✕ Not Recommended\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003eAbrasive cast irons cause rapid flank wear on this substrate. Use specialized AC4010K or AC4015K grades instead.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- 7. WHY CHOOSE US \u0026 VERIFIED USER REVIEWS --\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-left: 5px solid #47479F; padding-left: 10px; margin: 30px 0 15px 0; font-weight: bold;\"\u003e7. Why Choose Sumitomo Precision Machining Solutions?\u003c\/h2\u003e\n\u003cp style=\"line-height: 1.6; text-align: justify; font-size: 14px; margin-bottom: 20px;\"\u003eAll Sumitomo Electric cutting products conform to strict international \u003cstrong\u003eISO 9001:2015 quality standards\u003c\/strong\u003e. Rigorous industrial machining test data demonstrates that the premium AC820P Absozone grade delivers up to a \u003cstrong\u003e160% improvement in tool life reliability\u003c\/strong\u003e over standard CVD alternatives during roughing passes on alloy steels under heavy structural impact loads.\u003c\/p\u003e\n\u003ch3 style=\"font-size: 15px; color: #333333; margin: 25px 0 12px 0; font-weight: bold;\"\u003eVerified International Customer Reports \u0026amp; Machine Shop Testimonials\u003c\/h3\u003e\n\u003cdiv style=\"display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 15px; margin-bottom: 30px;\"\u003e\n\u003c!-- Review 1: USA --\u003e\n\u003cdiv style=\"border: 1px solid #e2e8f0; border-left: 4px solid #47479F; padding: 15px; border-radius: 0 4px 4px 0; background: #ffffff;\"\u003e\n\u003cdiv style=\"font-size: 13px; color: #666666; margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eRobert K. (Detroit, USA)\u003c\/strong\u003e \u003cspan style=\"color: #ffb703;\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-style: italic; font-size: 13.5px; margin: 0; line-height: 1.45;\"\u003e\"We put these to work roughing down forged 4140 shafts with heavy scale. The AC820P grade handles the scale layer with zero chipping on the cutting edge margin.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Review 2: Germany --\u003e\n\u003cdiv style=\"border: 1px solid #e2e8f0; border-left: 4px solid #47479F; padding: 15px; border-radius: 0 4px 4px 0; background: #ffffff;\"\u003e\n\u003cdiv style=\"font-size: 13px; color: #666666; margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eDieter S. (Dortmund, Germany)\u003c\/strong\u003e \u003cspan style=\"color: #ffb703;\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-style: italic; font-size: 13.5px; margin: 0; line-height: 1.45;\"\u003e\"The HM chipbreaker works incredibly well at 4.0mm DOC. Excellent chip breaking control, preventing long stringy wire nests from wrapping around the chuck.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Review 3: Italy --\u003e\n\u003cdiv style=\"border: 1px solid #e2e8f0; border-left: 4px solid #47479F; padding: 15px; border-radius: 0 4px 4px 0; background: #ffffff;\"\u003e\n\u003cdiv style=\"font-size: 13px; color: #666666; margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eMatteo N. (Turin, Italy)\u003c\/strong\u003e \u003cspan style=\"color: #ffb703;\"\u003e★★★★☆\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-style: italic; font-size: 13.5px; margin: 0; line-height: 1.45;\"\u003e\"Highly consistent performance during highly interrupted face-cuts on heavy steel square blocks. Very predictable wear development.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Review 4: Japan --\u003e\n\u003cdiv style=\"border: 1px solid #e2e8f0; border-left: 4px solid #47479F; padding: 15px; border-radius: 0 4px 4px 0; background: #ffffff;\"\u003e\n\u003cdiv style=\"font-size: 13px; color: #666666; margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eHiroshi Y. (Osaka, Japan)\u003c\/strong\u003e \u003cspan style=\"color: #ffb703;\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-style: italic; font-size: 13.5px; margin: 0; line-height: 1.45;\"\u003e\"鋼の荒加工で圧倒的な寿命延長。 The tool life predictability during automated production runs is phenomenal. Crater wear is barely noticeable.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Review 5: Canada --\u003e\n\u003cdiv style=\"border: 1px solid #e2e8f0; border-left: 4px solid #47479F; padding: 15px; border-radius: 0 4px 4px 0; background: #ffffff;\"\u003e\n\u003cdiv style=\"font-size: 13px; color: #666666; margin-bottom: 6px;\"\u003e\n\u003cstrong\u003eFraser D. (Ontario, Canada)\u003c\/strong\u003e \u003cspan style=\"color: #ffb703;\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-style: italic; font-size: 13.5px; margin: 0; line-height: 1.45;\"\u003e\"We've reduced our overall tool cost per component by more than 35% on our large turning cells since switching over to these HM inserts.\"\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 8. AI-STYLE INTERACTIVE FAQ \u0026 TROUBLESHOOTING --\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-left: 5px solid #47479F; padding-left: 10px; margin: 30px 0 15px 0; font-weight: bold;\"\u003e8. AI-Style Interactive FAQ \u0026amp; Troubleshooting\u003c\/h2\u003e\n\u003cdiv style=\"margin-bottom: 25px;\"\u003e\n\u003cdiv style=\"background-color: #fcfcff; border: 1px solid #e0e0e0; padding: 16px; border-radius: 4px; margin-bottom: 12px; box-shadow: 0 1px 2px rgba(0,0,0,0.02);\"\u003e\n\u003cp style=\"font-weight: bold; color: #47479f; margin: 0 0 6px 0; font-size: 14.5px;\"\u003eQ1: Can I run this AC820P grade insert with coolant during heavy steel roughing?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444444; font-size: 14px; line-height: 1.5;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e For heavy roughing and highly interrupted steel cuts, dry machining is often preferred to eliminate thermal shock fracturing. If you choose to use coolant, ensure an extremely high volume of flood coolant is delivered directly to the cutting zone to avoid cyclic thermal cracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #fcfcff; border: 1px solid #e0e0e0; padding: 16px; border-radius: 4px; margin-bottom: 12px; box-shadow: 0 1px 2px rgba(0,0,0,0.02);\"\u003e\n\u003cp style=\"font-weight: bold; color: #47479f; margin: 0 0 6px 0; font-size: 14.5px;\"\u003eQ2: What is causing the cutting edge to chip prematurely during shallow finishing cuts?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444444; font-size: 14px; line-height: 1.5;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e The HM chipbreaker features a highly reinforced rake land designed specifically for heavy chip loads (Fn \u0026gt;= 0.25 mm\/rev). Running light depths of cut or low feed rates causes the material to rub rather than shear, leading to work hardening and edge chipping. For finishing, switch to a sharper GU or NM geometry.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"background-color: #fcfcff; border: 1px solid #e0e0e0; padding: 16px; border-radius: 4px; box-shadow: 0 1px 2px rgba(0,0,0,0.02);\"\u003e\n\u003cp style=\"font-weight: bold; color: #47479f; margin: 0 0 6px 0; font-size: 14.5px;\"\u003eQ3: How do I handle massive crater wear along the top rake face?\u003c\/p\u003e\n\u003cp style=\"margin: 0; color: #444444; font-size: 14px; line-height: 1.5;\"\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Crater wear is driven by chemical diffusion at extreme temperatures. While the AC820P thick Al\u003csub\u003e2\u003c\/sub\u003eO\u003csub\u003e3\u003c\/sub\u003e layer protects the edge, excessive cutting speed (Vc) accelerates this wear. Reduce your linear cutting speed by 15-20% to manage temperature levels while maintaining high feed rates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 9. MATERIAL GRADE CROSS-REFERENCE \u0026 EQUIVALENTS --\u003e\n\u003ch2 style=\"font-size: 20px; color: #47479f; border-left: 5px solid #47479F; padding-left: 10px; margin: 30px 0 15px 0; font-weight: bold;\"\u003e9. Material Grade Cross-Reference \u0026amp; Equivalents\u003c\/h2\u003e\n\u003cdiv style=\"width: 100%; overflow-x: auto; margin-bottom: 25px; -webkit-overflow-scrolling: touch;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; min-width: 650px; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color: #47479f; color: #ffffff;\"\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eSumitomo Grade\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eSandvik Coromant\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eKennametal Grade\u003c\/th\u003e\n\u003cth style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: 600; text-align: left;\"\u003eIscar Equivalent\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc; font-weight: bold;\"\u003eAC820P (General Steel CVD)\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003eGC4425 \/ GC4325\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003eKCP25B \/ KC9125\u003c\/td\u003e\n\u003ctd style=\"padding: 12px; border: 1px solid #dcdcdc;\"\u003eIC8250 \/ IC8150\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- GRADE COMPARISON \u0026 PERFORMANCE CORNER --\u003e\n\u003cdiv style=\"background-color: #47479f; color: #ffffff; padding: 20px; border-radius: 4px; margin-top: 30px; box-shadow: 0 2px 5px rgba(0,0,0,0.1);\"\u003e\n\u003ch4 style=\"color: #ffffff; margin: 0 0 8px 0; font-size: 16px; font-weight: bold;\"\u003e💡 Grade Comparison \u0026amp; Workpiece Troubleshooting Tip:\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #f0f0f8; line-height: 1.5; text-align: justify;\"\u003eUnlike thin-film PVD coatings designed for stainless steel or exotic alloys (such as the AC630M or AC520U series), the \u003cstrong\u003eAC820P\u003c\/strong\u003e utilizes a thick, multi-layer Absozone CVD configuration engineered specifically to master carbon and alloy steels. If you observe micro-chipping along the primary margin during heavy interrupted cuts, do not reduce your feed rate. Instead, check the mechanical rigidity of your CNC tool turret and reduce the linear cutting speed (Vc) by 15%. This structural modification helps the thick CVD coating dissipate shock loads effectively, keeping your micro-cutting edges intact and preventing premature structural wear.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sumitomo","offers":[{"title":"Default Title","offer_id":43396669472940,"sku":"TNMG160408R-HM AC820P","price":65.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/Sumitomo_TNMG160408R-HM_AC820P_indexable_carbide_turning_insert_with_HM_chipbreaker_for_carbon_steel_heavy_roughing_close-up_view.jpg?v=1785726081","url":"https:\/\/cnchome-beyond.com\/products\/tnmg160408-r-hm-ac820p-sumitomo-carbide-insert","provider":"CNCHome-Beyond","version":"1.0","type":"link"}