{"product_id":"sumitomo-tcmt16t308n-su-ac630m","title":"SUMITOMO TCMT16T308N-SU AC630M CVD Carbide Insert | TCMT32.52N-SU","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\u003cmeta name=\"description\" content=\"Shop SUMITOMO TCMT16T308N-SU AC630M (TCMT32.52N-SU) CVD carbide inserts. General medium turning for stainless steel \u0026amp; steel alloys. Fast shipping.\"\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 TCMT16T308N-SU AC630M Turning Insert\u003c\/h1\u003e\n\u003cdiv class=\"subtitle\"\u003eISO: TCMT16T308N-SU | ANSI: TCMT32.52N-SU | Positive 7° Clearance CVD Coated Insert for General Medium Stainless Steel Turning\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 positive turning insert is best suited for general-purpose medium cutting and interrupted turning on austenitic and duplex stainless steels without built-up edge or thermal cracking?\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSUMITOMO TCMT16T308N-SU AC630M\u003c\/strong\u003e (ANSI designation: \u003cstrong\u003eTCMT32.52N-SU AC630M\u003c\/strong\u003e) is a high-performance 60° triangular single-sided indexable turning insert featuring a 7° positive clearance angle for reduced cutting forces. Powered by SUMITOMO's \u003cstrong\u003eAC630M CVD Coating Grade\u003c\/strong\u003e—utilizing Absotech technology with a tough TiCN\/Al2O3 composite CVD coating layered over a high-toughness carbide substrate—this insert excels at resisting notch wear, thermal shock, and edge chipping under general to interrupted cutting conditions across ISO M15–M35, P15–P35, and S15–S30 ranges.\u003c\/p\u003e\n\u003cp\u003eFeaturing a versatile 0.8 mm (1\/32\") corner radius, a Neutral (N) cutting direction, and the general-purpose \u003cstrong\u003eSU Medium-Cut Chipbreaker\u003c\/strong\u003e, this insert guarantees active chip breaking across medium cutting depths (ap: 0.8–3.0 mm) and moderate feed rates (f: 0.12–0.30 mm\/rev). The positive rake geometry drastically cuts cutting loads and heat buildup, making it the ideal choice for internal boring bars and low-rigidity external shank holders on CNC turning centers.\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\"\u003eTCMT 16T308 N - SU [ Grade: AC630M ]\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eT (Shape):\u003c\/strong\u003e Triangular 60° Indexable Insert (3 single-sided positive edges)\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eC (Clearance):\u003c\/strong\u003e 7° Positive Normal Clearance Angle (Low radial cutting resistance)\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eM (Tolerances):\u003c\/strong\u003e Molded Precision Tolerance Range (Class M: Economy \u0026amp; high versatility)\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eT (Feature):\u003c\/strong\u003e Single-sided insert with countersunk screw hole and molded chipbreaker\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003e16 (Size \/ IC):\u003c\/strong\u003e Edge length 16.5 mm \/ Inscribed Circle = 9.525 mm (3\/8\")\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eT3 (Thickness):\u003c\/strong\u003e Thickness s = 3.97 mm (5\/32\")\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003e08 (Corner Radius):\u003c\/strong\u003e General-purpose Corner Radius r = 0.8 mm (0.031\" \/ 1\/32\")\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eN (Edge Prep):\u003c\/strong\u003e Neutral cutting edge preparation with hone for edge stability\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eSU (Chipbreaker):\u003c\/strong\u003e General-purpose medium-cut chipbreaker for stainless and steel alloys\u003c\/div\u003e\n\u003cdiv class=\"iso-item\"\u003e\n\u003cstrong\u003eAC630M (Grade):\u003c\/strong\u003e Tough CVD Composite (TiCN + Al2O3) Coated Hard Substrate\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- 2. Key Features --\u003e\n\u003ch2\u003e2. Key Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsotech CVD AC630M Grade:\u003c\/strong\u003e High-adhesion TiCN and thick Al2O3 multi-layer coating provides thermal insulation and oxidation resistance for long tool life in stainless steel turning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e7° Positive Relief Geometry:\u003c\/strong\u003e Significantly reduces cutting forces and deflection, making it suitable for long internal boring bars and lower horsepower machines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSU General-Purpose Chipbreaker:\u003c\/strong\u003e Optimizes chip flow across a wide depth-of-cut range, preventing chip clogging in blind bore operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.8 mm Durable Nose Radius:\u003c\/strong\u003e Provides structural edge strength against impact during light interrupted cuts and medium roughing passes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal ISO Application:\u003c\/strong\u003e Delivers balanced wear resistance and fracture toughness across stainless steel, steel alloys, and high-temp alloys.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 3. Specifications \u0026 Dual-Unit Comparison --\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\u003eTCMT16T308N-SU\u003c\/td\u003e\n\u003ctd\u003eTCMT32.52N-SU\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\u003e3.97 mm\u003c\/td\u003e\n\u003ctd\u003e0.156\" (5\/32\")\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\u003e0.8 mm\u003c\/td\u003e\n\u003ctd\u003e0.0315\" (1\/32\")\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\u003e4.40 mm\u003c\/td\u003e\n\u003ctd\u003e0.173\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSubstrate Grade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eAbsotech CVD Coated (AC630M)\u003c\/td\u003e\n\u003ctd\u003eAbsotech CVD Coated (AC630M)\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\u003eStainless Steel (304, 316, 2205 Duplex)\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 - 0.30 mm\/rev\u003cbr\u003e\u003cem\u003e(0.005 - 0.012 ipr)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.8 - 3.0 mm\u003cbr\u003e\u003cem\u003e(0.031 - 0.118 in)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAlloy Steel (4140, 8620, 4340)\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\u003e0.15 - 0.32 mm\/rev\u003cbr\u003e\u003cem\u003e(0.006 - 0.013 ipr)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.0 - 3.2 mm\u003cbr\u003e\u003cem\u003e(0.039 - 0.126 in)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHeat Resistant Alloys (Inconel, Hastelloy)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40 - 85 m\/min\u003cbr\u003e\u003cem\u003e(130 - 280 SFM)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.10 - 0.22 mm\/rev\u003cbr\u003e\u003cem\u003e(0.004 - 0.009 ipr)\u003c\/em\u003e\n\u003c\/td\u003e\n\u003ctd\u003e0.5 - 2.0 mm\u003cbr\u003e\u003cem\u003e(0.020 - 0.078 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 Screw Clamp Turning \u0026amp; Boring Holders):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCompatible with standard toolholders: \u003ccode\u003eSTGCR\/L 2020K16\u003c\/code\u003e, \u003ccode\u003eSTFCR\/L 2020K16\u003c\/code\u003e, Internal Boring Bars: \u003ccode\u003eA16M-STFCR16\u003c\/code\u003e, \u003ccode\u003eS20R-STFCR16\u003c\/code\u003e\u003c\/p\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/collections\/tc-insert-external\" target=\"_blank\" rel=\"noopener\"\u003eView Compatible STGCR2020K16 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\u003e304, 316, 316L, 17-4PH, 2205 Duplex\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\u003ePrimary Choice\u003c\/td\u003e\n\u003ctd\u003eCarbon Steel 1045, Alloy Steel 4140, 4340\u003c\/td\u003e\n\u003ctd\u003e★★★★★ (Optimal)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eS (Exotic Alloys)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSecondary Choice\u003c\/td\u003e\n\u003ctd\u003eInconel 718, Hastelloy C276, Titanium\u003c\/td\u003e\n\u003ctd\u003e★★★☆☆ (Good)\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\u003eConditional\u003c\/td\u003e\n\u003ctd\u003eDuctile Iron, Gray Cast Iron\u003c\/td\u003e\n\u003ctd\u003e★★☆☆☆ (Limited)\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\u003eMedium External Turning \u0026amp; Facing:\u003c\/strong\u003e General machining of stainless shafting, flanges, and structural steel components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal ID Boring Operations:\u003c\/strong\u003e Deep hole boring using positive relief TCMT inserts to prevent chatter and chip packing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterrupted Medium Machining:\u003c\/strong\u003e Turning keyway-featured shafts or forged components requiring high edge strength against micro-impacts.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- 5. Compatibility --\u003e\n\u003ch2\u003e5. Compatibility\u003c\/h2\u003e\n\u003cp\u003eThis insert fits all standard ISO positive screw-clamp turning shanks and boring bars (STGCR\/L, STFCR\/L, STUCR\/L). Fully compatible with CNC lathes and turning centers from Haas, Mazak, Okuma, Doosan\/DN Solutions, Hardinge, and Hyundai WIA.\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 (Tough CVD) \/ AC6020M\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTCMT16T308N-SU\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSandvik Coromant\u003c\/td\u003e\n\u003ctd\u003eGC2025 \/ GC1115\u003c\/td\u003e\n\u003ctd\u003eTCMT16T308-MM \/ TCMT32.52-MM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKyocera\u003c\/td\u003e\n\u003ctd\u003eCA6525 \/ PR1535\u003c\/td\u003e\n\u003ctd\u003eTCMT16T308HQ \/ TCMT32.52HQ\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTungaloy\u003c\/td\u003e\n\u003ctd\u003eAH630 \/ T6130\u003c\/td\u003e\n\u003ctd\u003eTCMT16T308-PSS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIscar\u003c\/td\u003e\n\u003ctd\u003eIC907 \/ IC807\u003c\/td\u003e\n\u003ctd\u003eTCMT 16T308-SM\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 deliver 100% genuine SUMITOMO Electric Hardmetal indexable cutting tools directly through authorized industrial channels. Quality assurance procedures ensure consistent substrate integrity and precise coating adhesion for high-reliability automated manufacturing.\u003c\/p\u003e\n\u003ch3\u003eVerified Customer Reviews\u003c\/h3\u003e\n\u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003eDavid Miller (USA - Precision Machining Works) \u003cspan class=\"review-stars\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-body\"\u003eAC630M is my go-to grade for 316L stainless boring bars. The positive 7-degree relief stops chatter completely inside deep bores, and the SU chipbreaker breaks chips cleanly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003eStefan Huber (Germany - Huber Zerspanungstechnik) \u003cspan class=\"review-stars\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-body\"\u003eSehr zuverlässige Schneidplatte für Edelstahl. Die Standzeit bei unterbrochenem Schnitt auf 1.4404 ist beeindruckend.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003eMatteo Conti (Italy - Conti Meccanica S.r.l.) \u003cspan class=\"review-stars\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-body\"\u003eOttima placchetta per tornitura interna. Il grado AC630M resiste benissimo al calore senza scheggiarsi sul bordo.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003eYoshiaki Kato (Japan - Kato CNC Industry) \u003cspan class=\"review-stars\"\u003e★★★★★\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-body\"\u003eSUS304の加工で長年愛用しています。AC630Mは耐境界摩耗性が高く、安定した工具寿命が得られます。\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"review-card\"\u003e\n\u003cdiv class=\"review-header\"\u003eAlan Fraser (UK - Marine Component Engineering) \u003cspan class=\"review-stars\"\u003e★★★★☆\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cp class=\"review-body\"\u003eRunning these TCMT 16T308 inserts on duplex stainless shaft sleeves. Solid edge strength with good surface finishes.\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 benefit of using a positive clearance TCMT insert over a negative insert for internal boring?\u003c\/div\u003e\n\u003cdiv class=\"faq-a\"\u003eA: TCMT inserts feature a 7° positive clearance angle, which reduces radial cutting forces significantly. This lowers cutting pressure and vibration, making it ideal for overhang-prone boring bars and thin-walled parts.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-q\"\u003eQ: How does SUMITOMO's Absotech AC630M CVD grade improve tool life in stainless steel?\u003c\/div\u003e\n\u003cdiv class=\"faq-a\"\u003eA: Absotech CVD technology applies a highly heat-insulating composite layer combining dense TiCN and thermal-shock resistant Al2O3. This design protects the carbide substrate from notch wear and thermal cracking during medium turning.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cdiv class=\"faq-q\"\u003eQ: What cut depth range does the SU chipbreaker perform best in?\u003c\/div\u003e\n\u003cdiv class=\"faq-a\"\u003eA: The SU chipbreaker is engineered for general medium cutting, operating effectively across depths of cut from ap = 0.8 mm up to 3.0 mm (0.031\" to 0.118\") with feeds up to 0.30 mm\/rev.\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\u003eWorkpiece Thermal Cracking \/ Spalling\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThermal shock caused by erratic or dry coolant delivery\u003c\/td\u003e\n\u003ctd\u003eEnsure high-volume, continuous coolant stream or consider running dry with air blow if high speed permits.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBuilt-Up Edge (BUE) \/ Adhesion\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCutting speed Vc is too low for stainless steel shearing\u003c\/td\u003e\n\u003ctd\u003eIncrease cutting speed Vc by 15-20% to reach the optimal temperature zone for the AC630M CVD coating.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVibration \/ Chatter in Boring\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBar overhang is too long relative to bar diameter\u003c\/td\u003e\n\u003ctd\u003eReduce overhang ratio, reduce depth of cut ap slightly, or increase feed rate f to stabilize tool pressure.\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 standards, SUMITOMO AC630M Absotech CVD coated grade provides thermal shock barrier protection and high fracture toughness across ISO M15–M35 stainless steel and ISO P15–P35 alloy steel turning environments.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sumitomo","offers":[{"title":"Default Title","offer_id":43396371218604,"sku":"TCMT16T308N-SU AC630M","price":83.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/SUMITOMO_TCMT16T308N-SU_AC630M_CVD_Coated_Carbide_Turning_Insert.jpg?v=1787472244","url":"https:\/\/cnchome-beyond.com\/products\/sumitomo-tcmt16t308n-su-ac630m","provider":"CNCHome-Beyond","version":"1.0","type":"link"}