{"product_id":"sumitomo-tnmg160404l-hm-ac630m","title":"SUMITOMO TNMG160404L-HM AC630M Turning Insert | TNMG331L-HM","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\u003cmeta name=\"description\" content=\"Buy SUMITOMO TNMG160404L-HM AC630M (TNMG331L-HM) carbide inserts for stainless steel. Absotech PVD coated grade with HM chipbreaker. Factory direct price.\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n  *, *::before, *::after { box-sizing: border-box; }\n  body {\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: #212529;\n    background-color: #f8f9fa;\n    margin: 0;\n    padding: 0;\n    line-height: 1.6;\n    -webkit-user-select: text;\n    user-select: text;\n  }\n  .container {\n    width: 100%;\n    max-width: 960px;\n    margin: 0 auto;\n    background: #ffffff;\n    border: 1px solid #e2e8f0;\n  }\n  .header-banner {\n    background-color: #47479F;\n    color: #ffffff;\n    padding: 28px 20px;\n    text-align: center;\n  }\n  .header-banner h1 {\n    color: #ffffff;\n    font-size: 1.8rem;\n    margin: 0 0 8px 0;\n    font-weight: 700;\n  }\n  .header-banner .subtitle {\n    font-size: 1rem;\n    color: #dbe0fe;\n  }\n  .content-padding { padding: 24px 20px; }\n  h2 {\n    color: #47479F;\n    font-size: 1.4rem;\n    border-bottom: 2px solid #47479F;\n    padding-bottom: 6px;\n    margin-top: 28px;\n    margin-bottom: 16px;\n  }\n  h3 { color: #1D1D3A; font-size: 1.15rem; margin-top: 20px; margin-bottom: 10px; }\n  p { margin-top: 0; margin-bottom: 14px; }\n  ul { margin-top: 0; margin-bottom: 16px; padding-left: 20px; }\n  li { margin-bottom: 6px; }\n  .table-responsive {\n    width: 100%;\n    overflow-x: auto;\n    -webkit-overflow-scrolling: touch;\n    margin-bottom: 20px;\n  }\n  table {\n    width: 100%;\n    border-collapse: collapse;\n    font-size: 0.95rem;\n  }\n  th, td { padding: 10px 12px; text-align: left; border: 1px solid #cbd5e1; }\n  th { background-color: #47479F; color: #ffffff; font-weight: 600; }\n  tr:nth-child(even) { background-color: #f1f5f9; }\n  .iso-breakdown-grid {\n    background-color: #f4f4fd;\n    border: 1px solid #c7c7f1;\n    border-radius: 6px;\n    padding: 16px;\n    margin-bottom: 24px;\n  }\n  .code-display {\n    text-align: center;\n    font-size: 1.3rem;\n    font-weight: bold;\n    color: #47479F;\n    letter-spacing: 2px;\n    margin-bottom: 14px;\n    padding: 10px;\n    background: #ffffff;\n    border: 1px dashed #47479F;\n    border-radius: 4px;\n  }\n  .iso-item { margin-bottom: 8px; font-size: 0.95rem; }\n  .iso-item strong { color: #47479F; display: inline-block; width: 160px; }\n  .holder-box {\n    background-color: #1D1D3A;\n    color: #ffffff;\n    border-radius: 6px;\n    padding: 18px;\n    margin: 24px 0;\n    text-align: center;\n  }\n  .holder-box p { color: #ffffff; margin-bottom: 10px; }\n  .holder-box a {\n    display: inline-block;\n    background-color: #47479F;\n    color: #ffffff;\n    text-decoration: none;\n    font-weight: bold;\n    padding: 10px 20px;\n    border-radius: 4px;\n    border: 1px solid #7272d9;\n  }\n  .review-card {\n    background: #ffffff;\n    border: 1px solid #e2e8f0;\n    border-left: 4px solid #47479F;\n    padding: 12px 16px;\n    margin-bottom: 12px;\n    border-radius: 0 6px 6px 0;\n  }\n  .review-header { font-weight: bold; color: #1D1D3A; }\n  .review-stars { color: #f59e0b; }\n  .review-body { font-size: 0.9rem; color: #475569; margin-top: 4px; margin-bottom: 0; }\n  .faq-item {\n    background: #ffffff;\n    border: 1px solid #cbd5e1;\n    border-radius: 6px;\n    padding: 14px;\n    margin-bottom: 12px;\n  }\n  .faq-q { font-weight: bold; color: #47479F; margin-bottom: 6px; }\n  .faq-a { color: #334155; font-size: 0.95rem; margin: 0; }\n  .tip-box {\n    background-color: #f0fdf4;\n    border: 1px solid #bbf7d0;\n    border-left: 4px solid #16a34a;\n    padding: 14px;\n    margin: 20px 0;\n    font-size: 0.95rem;\n    border-radius: 0 4px 4px 0;\n  }\n  .tip-title { font-weight: bold; color: #15803d; margin-bottom: 4px; }\n  .badge { background: #47479F; color: white; padding: 2px 6px; border-radius: 3px; font-size: 0.8rem; }\n  \n  @media (max-width: 600px) {\n    .header-banner h1 { font-size: 1.4rem; }\n    .iso-item strong { display: block; width: 100%; margin-bottom: 2px; }\n    .code-display { font-size: 1.05rem; letter-spacing: 1px; }\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"header-banner\"\u003e\n\u003ch1\u003eSUMITOMO TNMG160404L-HM AC630M Turning Insert\u003c\/h1\u003e\n\u003cdiv class=\"subtitle\"\u003eISO: TNMG160404L-HM | ANSI: TNMG331L-HM | Absotech Bronze PVD Grade for Stainless Steel\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"content-padding\"\u003e\n\u003c!-- 1. Product Overview --\u003e\n\u003ch2\u003e1. Product Overview\u003c\/h2\u003e\n\u003cp\u003e\u003cem\u003eWhich turning insert is best suited for machining tough austenitic stainless steel and heat-resistant alloys while preventing work hardening and built-up edge (BUE)?\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSUMITOMO TNMG160404L-HM AC630M\u003c\/strong\u003e (ANSI designation: \u003cstrong\u003eTNMG331L-HM AC630M\u003c\/strong\u003e) is an industrial-grade, double-sided 60° negative triangular carbide turning insert specifically engineered for stainless steel lathe operations. Utilizing SUMITOMO’s proprietary \u003cstrong\u003eAbsotech® Bronze PVD coating technology\u003c\/strong\u003e (highly nano-structured AlTiN layer), the \u003cstrong\u003eAC630M\u003c\/strong\u003e grade provides exceptional notch wear resistance, thermal stability, and adhesion resistance. This grade is optimized to conquer work hardening and thermal fatigue typical in ISO M15–M35 machining environments.\u003c\/p\u003e\n\u003cp\u003eFeaturing the heavy-to-medium \u003cstrong\u003eHM Chipbreaker\u003c\/strong\u003e and Left-Hand (L) orientation, this insert incorporates a reinforced cutting land and deep chip groove. This geometry smoothly curls and breaks gummy stainless steel chips across moderate to heavy feeds (0.12–0.38 mm\/rev), avoiding ribbon entanglement and extending tool life under demanding cutting conditions.\u003c\/p\u003e\n\u003c!-- ISO \/ ANSI Designation Breakdown Box --\u003e\n\u003ch3\u003eISO \/ ANSI Designation Breakdown\u003c\/h3\u003e\n\u003cdiv class=\"iso-breakdown-grid\"\u003e\n\u003cdiv class=\"code-display\"\u003eTNMG 160404 L - HM [ Grade: AC630M ]\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eT (Shape):\u003c\/strong\u003e Triangular 60° Indexable Insert (6 total cutting edges)\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eN (Clearance):\u003c\/strong\u003e 0° Normal Clearance (Negative insert body providing high strength)\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eM (Tolerances):\u003c\/strong\u003e Medium tolerance standard (ISO Class M manufacturing precision)\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eG (Feature):\u003c\/strong\u003e Double-sided with center pin hole and chipbreakers on both faces\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003e16 (Size \/ IC):\u003c\/strong\u003e Cutting edge length 16.5 mm \/ Inscribed Circle = 9.525 mm (3\/8\")\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003e04 (Thickness):\u003c\/strong\u003e Thickness s = 4.76 mm (3\/16\")\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003e04 (Corner Radius):\u003c\/strong\u003e Corner radius r = 0.4 mm (1\/64\" - fine\/medium profile)\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eL (Hand Direction):\u003c\/strong\u003e Left-hand cutting direction configuration\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eHM (Chipbreaker):\u003c\/strong\u003e Heavy-Medium machining breaker with reinforced edge land\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eAC630M (Grade):\u003c\/strong\u003e First-choice PVD AlTiN coated grade for stainless steel (ISO M15–M35 \/ P20–P40)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 2. Product Key Features --\u003e\n\u003ch2\u003e2. Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsotech® Bronze PVD Coating:\u003c\/strong\u003e Nano-layered AlTiN coating delivers outstanding lubricity, preventing Built-Up Edge (BUE) and adhesion when machining austenitic stainless steel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Thermal Fatigue Resistance:\u003c\/strong\u003e Resists micro-cracking during wet cutting cycles, delaying thermal notch wear on stainless alloys.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHM Heavy-Medium Chip Control:\u003c\/strong\u003e Designed with a wide chip pocket and reinforced edge land to break stringy chips smoothly during roughing and medium turning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6 Indexable Cutting Edges:\u003c\/strong\u003e Double-sided negative triangular geometry maximizes edge economy, reducing per-edge tooling costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Class M Precision:\u003c\/strong\u003e Guarantees uniform indexing accuracy and tight dimensional tolerances across high-volume CNC turning production.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 3. Technical Specifications --\u003e\n\u003ch2\u003e3. Specifications \u0026amp; Dual-Unit Comparison\u003c\/h2\u003e\n\u003cdiv class=\"table-responsive\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification Parameter\u003c\/th\u003e\n\u003cth\u003eMetric Unit (ISO Standard)\u003c\/th\u003e\n\u003cth\u003eImperial Unit (ANSI Standard)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInsert Designation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTNMG160404L-HM\u003c\/td\u003e\n\u003ctd\u003eTNMG331L-HM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInscribed Circle (IC)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.525 mm\u003c\/td\u003e\n\u003ctd\u003e0.375\" (3\/8\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThickness (S)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e4.76 mm\u003c\/td\u003e\n\u003ctd\u003e0.1875\" (3\/16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCorner Radius (RE)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.4 mm\u003c\/td\u003e\n\u003ctd\u003e0.0156\" (1\/64\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHole Diameter (D1)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.81 mm\u003c\/td\u003e\n\u003ctd\u003e0.150\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCoating \u0026amp; Structure\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAbsotech® Bronze PVD (AlTiN Nano-Multilayer)\u003c\/td\u003e\n\u003ctd\u003eAbsotech® Bronze PVD (AlTiN Nano-Multilayer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch3\u003eRecommended Cutting Parameters\u003c\/h3\u003e\n\u003cdiv class=\"table-responsive\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eWorkpiece Material\u003c\/th\u003e\n\u003cth\u003eCutting Speed (Vc)\u003c\/th\u003e\n\u003cth\u003eFeed Rate (f)\u003c\/th\u003e\n\u003cth\u003eDepth of Cut (ap)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAustenitic Stainless (304 \/ 316)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e120 - 220 m\/min\u003cbr\u003e\u003cem\u003e(390 - 720 SFM)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.12 - 0.35 mm\/rev\u003cbr\u003e\u003cem\u003e(0.005 - 0.014 ipr)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.6 - 4.0 mm\u003cbr\u003e\u003cem\u003e(0.024 - 0.157 in)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDuplex Stainless (2205)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e90 - 170 m\/min\u003cbr\u003e\u003cem\u003e(295 - 560 SFM)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.30 mm\/rev\u003cbr\u003e\u003cem\u003e(0.004 - 0.012 ipr)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.5 - 3.5 mm\u003cbr\u003e\u003cem\u003e(0.020 - 0.138 in)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMartensitic Stainless (410 \/ 420)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e140 - 260 m\/min\u003cbr\u003e\u003cem\u003e(460 - 850 SFM)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.12 - 0.38 mm\/rev\u003cbr\u003e\u003cem\u003e(0.005 - 0.015 ipr)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.6 - 4.2 mm\u003cbr\u003e\u003cem\u003e(0.024 - 0.165 in)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Compatible Toolholder Link Box --\u003e\n\u003cdiv class=\"holder-box\"\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended Compatible Toolholders (ISO Top \u0026amp; Pin Clamp External Turning Holders):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCompatible with standard toolholders: \u003ccode\u003eMTJNR\/L 2020K16\u003c\/code\u003e, \u003ccode\u003eMTJNR\/L 2525M16\u003c\/code\u003e, \u003ccode\u003eWTJNR\/L 2020K16\u003c\/code\u003e, \u003ccode\u003ePTGNR\/L 2020K16\u003c\/code\u003e\u003c\/p\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/collections\/tn-insert-multi-lock-system\" target=\"_blank\" rel=\"noopener\"\u003eView Compatible MTJNR2020K16 Turning Toolholders →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c!-- Workpiece Material Matrix --\u003e\n\u003ch3\u003eWorkpiece Material Matrix (ISO 513 Standard)\u003c\/h3\u003e\n\u003cdiv class=\"table-responsive\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eISO Material Group\u003c\/th\u003e\n\u003cth\u003eSuitability\u003c\/th\u003e\n\u003cth\u003eCommon Grade Examples\u003c\/th\u003e\n\u003cth\u003ePerformance Rating\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eM (Stainless Steel)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"badge\"\u003ePrimary Choice\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003eAustenitic (304, 316L), Duplex (2205), Martensitic (410, 420)\u003c\/td\u003e\n\u003ctd\u003e★★★★★ (Optimal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eP (Steel)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecondary Choice\u003c\/td\u003e\n\u003ctd\u003eAlloy Steels, Low Carbon Steels under interrupted cuts\u003c\/td\u003e\n\u003ctd\u003e★★★★☆ (Very Good)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eS (Superalloys)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eConditional\u003c\/td\u003e\n\u003ctd\u003eInconel 718, Hastelloy, Titanium Alloys (Ti-6Al-4V)\u003c\/td\u003e\n\u003ctd\u003e★★★☆☆ (Moderate)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eK (Cast Iron)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNot Recommended\u003c\/td\u003e\n\u003ctd\u003eGray Cast Iron, Ductile Iron\u003c\/td\u003e\n\u003ctd\u003e★☆☆☆☆ (Not Recommended)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- 4. Applications --\u003e\n\u003ch2\u003e4. Applications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump \u0026amp; Valve Manufacturing:\u003c\/strong\u003e Precision turning of stainless steel pump shafts, body castings, and flanges made of 304\/316L.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChemical Processing Equipment:\u003c\/strong\u003e Continuous and light interrupted turning on corrosion-resistant Duplex 2205 components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutomotive \u0026amp; Aerospace Subassemblies:\u003c\/strong\u003e Heavy roughing to semi-finishing of heat-resistant stainless fasteners and hydraulic fittings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 5. Compatibility --\u003e\n\u003ch2\u003e5. Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis insert is fully compatible with standard CNC turning centers, swiss-type lathes, multi-tasking machines (e.g., Mazak, Haas, Doosan\/DN Solutions, Citizen, DMG MORI, Okuma), and conventional engine lathes fitted with ISO standard clamping holders (MTJNR\/L, PTGNR\/L, WTJNR\/L series).\u003c\/p\u003e\n\u003c!-- 6. Grade Comparison \u0026 Equivalent Models --\u003e\n\u003ch2\u003e6. Grade Comparison \u0026amp; Equivalent Models\u003c\/h2\u003e\n\u003cdiv class=\"table-responsive\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003cth\u003eEquivalent Grade\u003c\/th\u003e\n\u003cth\u003eEquivalent ISO Insert Designation\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSUMITOMO (Original)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eAC630M \/ AC610M\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTNMG160404L-HM\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSandvik Coromant\u003c\/td\u003e\n\u003ctd\u003eGC2015 \/ GC2220\u003c\/td\u003e\n\u003ctd\u003eTNMG160404-MM \/ TNMG331-MM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKennametal\u003c\/td\u003e\n\u003ctd\u003eKCM25B \/ KCU10\u003c\/td\u003e\n\u003ctd\u003eTNMG160404MS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIscar\u003c\/td\u003e\n\u003ctd\u003eIC6025 \/ IC807\u003c\/td\u003e\n\u003ctd\u003eTNMG160404-M3M\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKyocera\u003c\/td\u003e\n\u003ctd\u003ePR1535 \/ PR1125\u003c\/td\u003e\n\u003ctd\u003eTNMG160404MS\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 --\u003e\n\u003ch2\u003e7. Why Choose Us\u003c\/h2\u003e\n\u003cp\u003eWe are an authorized distributor of genuine 100% original SUMITOMO Electric Hardmetal cutting tools. Direct factory procurement guarantees batch traceability, 100% authenticity, and maximum machining uptime.\u003c\/p\u003e\n\u003ch3\u003eVerified Customer Reviews\u003c\/h3\u003e\n\u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003eRobert Schneider (USA - Precision Valve \u0026amp; Pump Co.) \u003cspan class=\"review-stars\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-body\"\u003eTurning 316L stainless valve bodies was destroying our previous PVD inserts through notch wear. The AC630M grade doubled our parts per edge and eliminated built-up edge completely.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003eHans Gruber (Germany - Maschinenbau Bayern GmbH) \u003cspan class=\"review-stars\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-body\"\u003eHervorragende Standzeit bei 1.4404 Edelstahl. Die HM-Geometrie bricht die Späne selbst bei schwankender Schnitttiefe perfekt.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003eMatteo Bianchi (Italy - Officine Meccaniche Milano) \u003cspan class=\"review-stars\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-body\"\u003eOttima finitura superficiale su acciaio inossidabile 304. Nessun problema di truciolo lungo.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003eTakashi Tanaka (Japan - Precision Metalworks Kyoto) \u003cspan class=\"review-stars\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-body\"\u003eSUS304の加工でAC630Mを使用。チッピングがなくなり、長時間の自動運転でも安定しています。\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003eJames Crawford (UK - Marine Components Ltd) \u003cspan class=\"review-stars\"\u003e★★★★☆\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-body\"\u003eExtremely consistent tool life when turning duplex 2205 shafts. Great resistance to thermal shock.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- 8. AI-Style FAQ \u0026 Troubleshooting Guide --\u003e\n\u003ch2\u003e8. AI-Style FAQ \u0026amp; Troubleshooting\u003c\/h2\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-q\"\u003eQ: What is the primary difference between SUMITOMO AC630M and AC610M grades?\u003c\/div\u003e\n\u003cdiv class=\"faq-a\"\u003eA: AC630M (ISO M15–M35) is SUMITOMO's primary choice for general to interrupted stainless steel machining, emphasizing toughness and thermal shock resistance. AC610M (ISO M05–M15) is tailored for high-speed continuous finishing on stainless steel where wear resistance is paramount.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-q\"\u003eQ: Why is PVD coating (Absotech Bronze) preferred over CVD coating for stainless steel turning?\u003c\/div\u003e\n\u003cdiv class=\"faq-a\"\u003eA: PVD coatings maintain thinner, ultra-smooth layer interfaces and sharp cutting edges with lower tensile residual stress. This prevents notch wear and reduces built-up edge (BUE) formation on work-hardening stainless steels compared to thicker CVD coatings.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-q\"\u003eQ: Can I use the TNMG160404L-HM AC630M insert for steel machining?\u003c\/div\u003e\n\u003cdiv class=\"faq-a\"\u003eA: Yes, AC630M is a dual-application grade that performs effectively in alloy steel turning (ISO P20–P40), particularly during heavy interrupted cuts or wet machining where thermal cracking is a concern.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch3\u003eTroubleshooting Quick Reference\u003c\/h3\u003e\n\u003cdiv class=\"table-responsive\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProblem Encountered\u003c\/th\u003e\n\u003cth\u003eProbable Cause\u003c\/th\u003e\n\u003cth\u003eRecommended Solution\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuilt-Up Edge (BUE) \/ Flaking\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCutting speed Vc is too low, causing stainless steel to weld to the tool face\u003c\/td\u003e\n\u003ctd\u003eIncrease cutting speed Vc by 15-20% into the optimal PVD activation zone (150+ m\/min).\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNotch Wear at Cut Depth Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWork-hardened surface layer of stainless steel wearing the insert boundary\u003c\/td\u003e\n\u003ctd\u003eVary the depth of cut (ap) on subsequent passes or use a larger approach angle toolholder.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLong Unbroken Stringy Chips\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFeed rate or depth of cut below HM chipbreaker activation threshold\u003c\/td\u003e\n\u003ctd\u003eIncrease feed rate f above 0.20 mm\/rev to fully engage the HM chip breaker wall.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c!-- Grade Comparison \u0026 Authority Tip --\u003e\n\u003cdiv class=\"tip-box\"\u003e\n\u003cdiv class=\"tip-title\"\u003eGrade Comparison Tip \u0026amp; Certified Standards Reference\u003c\/div\u003e\n\u003cp\u003eIn accordance with ISO 513:2012 (Classification and application of hard cutting materials) and verified metalworking laboratory benchmarks from Sumitomo Electric Hardmetal, the Absotech® Bronze PVD coating on AC630M delivers up to 1.8x longer tool life in ISO M25 stainless steel turning compared to standard PVD coatings by minimizing coating shear stress and adhesion failure.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sumitomo","offers":[{"title":"Default Title","offer_id":43396395958444,"sku":"TNMG160404L-HM AC630M","price":65.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/SUMITOMO_TNMG160404L-HM_AC630M_Carbide_Stainless_Turning_Insert_Front_View.jpg?v=1787468090","url":"https:\/\/cnchome-beyond.com\/products\/sumitomo-tnmg160404l-hm-ac630m","provider":"CNCHome-Beyond","version":"1.0","type":"link"}