{"product_id":"tnmg160404n-uz-ac700g-sumitomo-carbide-insert","title":"SUMITOMO TNMG160404N-UZ AC700G Cast Iron Turning Insert (TNMG 331N-UZ)","description":"\u003cstyle\u003e\n  :root {\n    --brand-color: #47479F;\n    --brand-dark: #323270;\n    --text-main: #222222;\n    --text-muted: #555555;\n    --bg-light: #f8f9fa;\n    --bg-white: #ffffff;\n    --border-color: #e0e0e0;\n  }\n\n  .cnc-pdp-container {\n    max-width: 1200px;\n    margin: 0 auto;\n    padding: 16px;\n    font-family: -apple-system, BlinkMacSystemFont, \"Segoe UI\", Roboto, Helvetica, Arial, sans-serif;\n    color: var(--text-main);\n    line-height: 1.6;\n    -webkit-user-select: text;\n    user-select: text;\n  }\n\n  .cnc-pdp-container *, .cnc-pdp-container *::before, .cnc-pdp-container *::after {\n    box-sizing: border-box;\n  }\n\n  \/* Typography *\/\n  .cnc-h1 {\n    background-color: var(--brand-color);\n    color: #ffffff !important;\n    padding: 20px 24px;\n    font-size: clamp(20px, 4vw, 28px);\n    font-weight: 700;\n    margin: 0 0 24px 0;\n    border-radius: 6px;\n    line-height: 1.3;\n  }\n\n  .cnc-h2 {\n    font-size: clamp(18px, 3vw, 22px);\n    color: var(--brand-color);\n    border-bottom: 2px solid var(--brand-color);\n    padding-bottom: 8px;\n    margin-top: 36px;\n    margin-bottom: 16px;\n    font-weight: 700;\n  }\n\n  .cnc-h3 {\n    font-size: 16px;\n    font-weight: 700;\n    color: var(--brand-dark);\n    margin-top: 16px;\n    margin-bottom: 8px;\n  }\n\n  p {\n    margin-top: 0;\n    margin-bottom: 12px;\n  }\n\n  \/* Structural Elements *\/\n  .cnc-card {\n    border: 1px solid var(--border-color);\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 20px;\n    background-color: var(--bg-white);\n  }\n\n  .cnc-card-dark {\n    background-color: var(--brand-color);\n    color: #ffffff !important;\n    border-radius: 6px;\n    padding: 20px;\n    margin-bottom: 20px;\n  }\n\n  .cnc-card-dark p, .cnc-card-dark h3, .cnc-card-dark span, .cnc-card-dark div {\n    color: #ffffff !important;\n  }\n\n  .cnc-grid-2 {\n    display: grid;\n    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));\n    gap: 16px;\n  }\n\n  .cnc-grid-3 {\n    display: grid;\n    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));\n    gap: 16px;\n  }\n\n  \/* Tables *\/\n  .cnc-table-wrapper {\n    width: 100%;\n    overflow-x: auto;\n    margin-bottom: 20px;\n    -webkit-overflow-scrolling: touch;\n  }\n\n  .cnc-table {\n    width: 100%;\n    border-collapse: collapse;\n    text-align: left;\n    font-size: 14px;\n    min-width: 500px;\n  }\n\n  .cnc-table th {\n    background-color: var(--brand-color);\n    color: #ffffff;\n    padding: 10px 12px;\n    font-weight: 600;\n  }\n\n  .cnc-table td {\n    padding: 10px 12px;\n    border-bottom: 1px solid var(--border-color);\n  }\n\n  .cnc-table tr:nth-child(even) {\n    background-color: var(--bg-light);\n  }\n\n  \/* Nomenclature Box *\/\n  .iso-breakdown {\n    display: flex;\n    flex-wrap: wrap;\n    gap: 8px;\n    margin: 16px 0;\n  }\n\n  .iso-box {\n    border: 1px solid var(--brand-color);\n    border-radius: 4px;\n    padding: 8px 12px;\n    background-color: var(--bg-light);\n    flex: 1 1 120px;\n    text-align: center;\n  }\n\n  .iso-box .char {\n    font-weight: 800;\n    font-size: 18px;\n    color: var(--brand-color);\n    display: block;\n  }\n\n  .iso-box .desc {\n    font-size: 11px;\n    color: var(--text-muted);\n    text-transform: uppercase;\n  }\n\n  \/* Toolholder Link Box *\/\n  .holder-link-box {\n    border: 2px dashed var(--brand-color);\n    background-color: #f0f0fa;\n    padding: 16px;\n    border-radius: 6px;\n    margin: 20px 0;\n    text-align: center;\n  }\n\n  .holder-link-btn {\n    display: inline-block;\n    background-color: var(--brand-color);\n    color: #ffffff !important;\n    padding: 10px 20px;\n    text-decoration: none;\n    border-radius: 4px;\n    font-weight: 600;\n    margin-top: 10px;\n  }\n\n  \/* Reviews *\/\n  .review-stars {\n    color: #ffb400;\n    font-size: 14px;\n  }\n\n  .review-author {\n    font-weight: 700;\n    font-size: 13px;\n    color: var(--text-muted);\n  }\n\n  \/* Badge *\/\n  .badge-keyword {\n    display: inline-block;\n    background: #eef0f8;\n    color: var(--brand-dark);\n    padding: 4px 8px;\n    border-radius: 4px;\n    font-size: 12px;\n    margin: 2px;\n    font-weight: 500;\n  }\n\u003c\/style\u003e\n\u003cdiv class=\"cnc-pdp-container\"\u003e\n\u003c!-- H1 Title --\u003e\n\u003ch1 class=\"cnc-h1\"\u003eSUMITOMO TNMG160404N-UZ AC700G Cast Iron Carbide Turning Insert (ANSI: TNMG 331N-UZ)\u003c\/h1\u003e\n\u003c!-- Section 1: Product Overview --\u003e\n\u003ch2 class=\"cnc-h2\"\u003e1. Product Overview\u003c\/h2\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cp\u003e\u003cstrong\u003eWhich turning insert is best for bi-directional, neutral turning of ductile and gray cast irons where versatile chip control, micro-chipping resistance, and precise surface finish are critical?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eSUMITOMO TNMG160404N-UZ AC700G\u003c\/strong\u003e (ANSI designation \u003cstrong\u003eTNMG 331N-UZ\u003c\/strong\u003e) is SUMITOMO's versatile, neutral-hand turning insert designed specifically for gray cast iron and ductile cast iron turning operations (ISO K10-K25 and steel crossover P10-P20). Featuring a neutral edge orientation ('N') combined with a precision 0.4mm (1\/64\") corner radius, this insert accommodates bi-directional turning, face-turning, and profiling operations on both left-hand and right-hand toolholders without edge conflict.\u003c\/p\u003e\n\u003cp\u003eUtilizing SUMITOMO's proprietary \u003cstrong\u003eSuper FF CVD Coating Technology (Al2O3 + TiCN multi-layer)\u003c\/strong\u003e on an ultra-hard, deformation-resistant carbide substrate, the AC700G grade suppresses coating delamination, thermal fatigue cracks, and abrasive flank wear during high-speed iron processing. Integrated with the low-cutting-force \u003cstrong\u003eUZ Light-Medium Chipbreaker Geometry\u003c\/strong\u003e, it delivers exceptional chip curling, low spindle load, and chatter suppression on light-to-medium cut depths (ap up to 3.5 mm).\u003c\/p\u003e\n\u003cdiv style=\"margin-top: 12px;\"\u003e\n\u003cspan class=\"badge-keyword\"\u003eTNMG160404N-UZ\u003c\/span\u003e \u003cspan class=\"badge-keyword\"\u003eTNMG 331N-UZ\u003c\/span\u003e \u003cspan class=\"badge-keyword\"\u003eSUMITOMO AC700G\u003c\/span\u003e \u003cspan class=\"badge-keyword\"\u003eNeutral Cast Iron Turning\u003c\/span\u003e \u003cspan class=\"badge-keyword\"\u003eSuper FF CVD Coating\u003c\/span\u003e \u003cspan class=\"badge-keyword\"\u003eUZ Light-Medium Chipbreaker\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 2: Key Features --\u003e\n\u003ch2 class=\"cnc-h2\"\u003e2. Key Features\u003c\/h2\u003e\n\u003cdiv class=\"cnc-grid-2\"\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eSuper FF CVD Coating Technology\u003c\/div\u003e\n\u003cp\u003eFeatures ultra-dense, highly textured Al2O3 and TiCN crystalline layers engineered to stop coating peeling, adhesion, and abrasive flank wear in cast iron machining.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003e0.4mm Nose Radius Precision\u003c\/div\u003e\n\u003cp\u003eMinimizes cutting pressure and lateral force on low-rigidity setups, yielding smooth surface finishes on thin-walled casting housings and tight shoulders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eUZ Low-Resistance Chipbreaker\u003c\/div\u003e\n\u003cp\u003eIncorporate a curved rake face and positive cutting edge design that lowers horsepower demand and smoothly curls ductile iron chips across light-to-medium feeds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eNeutral Handed 6-Edge Design\u003c\/div\u003e\n\u003cp\u003eDouble-sided negative 60° triangular design ('N' hand) provides 6 fully symmetrical cutting corners, compatible with both right-hand and left-hand toolholders.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 3: Technical Specifications \u0026 Nomenclature --\u003e\n\u003ch2 class=\"cnc-h2\"\u003e3. Specifications \u0026amp; ISO\/ANSI Breakdown\u003c\/h2\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eISO \/ ANSI Nomenclature Breakdown\u003c\/div\u003e\n\u003cp\u003eUnderstanding the standard code breakdown for accurate tooling identification:\u003c\/p\u003e\n\u003cdiv class=\"iso-breakdown\"\u003e\n\u003cdiv class=\"iso-box\"\u003e\n\u003cspan class=\"char\"\u003eT\u003c\/span\u003e\u003cspan class=\"desc\"\u003eShape (60° Triangle)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"iso-box\"\u003e\n\u003cspan class=\"char\"\u003eN\u003c\/span\u003e\u003cspan class=\"desc\"\u003eClearance (0° Negative)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"iso-box\"\u003e\n\u003cspan class=\"char\"\u003eM\u003c\/span\u003e\u003cspan class=\"desc\"\u003eTolerance Class\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"iso-box\"\u003e\n\u003cspan class=\"char\"\u003eG\u003c\/span\u003e\u003cspan class=\"desc\"\u003eFixing \/ Hole Type\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"iso-box\"\u003e\n\u003cspan class=\"char\"\u003e16 \/ 3\u003c\/span\u003e\u003cspan class=\"desc\"\u003eEdge Length (16.5mm \/ 3\/8\")\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"iso-box\"\u003e\n\u003cspan class=\"char\"\u003e04 \/ 3\u003c\/span\u003e\u003cspan class=\"desc\"\u003eThickness (4.76mm \/ 3\/16\")\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"iso-box\"\u003e\n\u003cspan class=\"char\"\u003e04 \/ 1\u003c\/span\u003e\u003cspan class=\"desc\"\u003eCorner Radius (0.4mm \/ 1\/64\")\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"iso-box\"\u003e\n\u003cspan class=\"char\"\u003eN-UZ\u003c\/span\u003e\u003cspan class=\"desc\"\u003eNeutral Hand \/ UZ Breaker\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"iso-box\"\u003e\n\u003cspan class=\"char\"\u003eAC700G\u003c\/span\u003e\u003cspan class=\"desc\"\u003eCast Iron CVD Grade\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eDimensional Standard Comparison (Metric vs. Imperial)\u003c\/div\u003e\n\u003cdiv class=\"cnc-table-wrapper\"\u003e\n\u003ctable class=\"cnc-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eMetric Designation (ISO)\u003c\/th\u003e\n\u003cth\u003eImperial Designation (ANSI)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsert Model Code\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTNMG160404N-UZ\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTNMG 331N-UZ\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInscribed Circle (IC)\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\u003eThickness (S)\u003c\/td\u003e\n\u003ctd\u003e4.76 mm\u003c\/td\u003e\n\u003ctd\u003e0.187\" (3\/16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorner Radius (r)\u003c\/td\u003e\n\u003ctd\u003e0.4 mm\u003c\/td\u003e\n\u003ctd\u003e0.016\" (1\/64\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHole Diameter (d1)\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\u003eCutting Edge Length (L)\u003c\/td\u003e\n\u003ctd\u003e16.5 mm\u003c\/td\u003e\n\u003ctd\u003e0.650\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eRecommended Cutting Parameters\u003c\/div\u003e\n\u003cdiv class=\"cnc-table-wrapper\"\u003e\n\u003ctable class=\"cnc-table\"\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\u003eDuctile Cast Iron (FCD450, FCD600, 65-45-12)\u003c\/td\u003e\n\u003ctd\u003e180 - 330 m\/min (600 - 1080 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.28 mm\/rev (.003 - .011 IPR)\u003c\/td\u003e\n\u003ctd\u003e0.5 - 3.5 mm (.020 - .138 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGray Cast Iron (FC250, FC300, Class 35)\u003c\/td\u003e\n\u003ctd\u003e160 - 320 m\/min (520 - 1050 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.25 mm\/rev (.003 - .010 IPR)\u003c\/td\u003e\n\u003ctd\u003e0.5 - 3.0 mm (.020 - .118 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCarbon \u0026amp; Alloy Steels (P10-P20 Crossover)\u003c\/td\u003e\n\u003ctd\u003e150 - 260 m\/min (490 - 850 SFM)\u003c\/td\u003e\n\u003ctd\u003e0.08 - 0.22 mm\/rev (.003 - .009 IPR)\u003c\/td\u003e\n\u003ctd\u003e0.5 - 2.5 mm (.020 - .098 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Toolholder Link Box --\u003e\n\u003cdiv class=\"holder-link-box\"\u003e\n\u003cdiv style=\"font-weight: bold; font-size: 16px; color: var(--brand-dark);\"\u003eCompatible Toolholder Requirements\u003c\/div\u003e\n\u003cp style=\"margin: 8px 0; font-size: 14px;\"\u003eNeutral hand design fits both Right-Hand (\u003cstrong\u003eMTJNR \/ MTGNR\u003c\/strong\u003e) and Left-Hand (\u003cstrong\u003eMTJNL \/ MTGNL\u003c\/strong\u003e) external turning toolholders as well as boring bars taking 1604 \/ 331 size negative inserts.\u003c\/p\u003e\n\u003ca href=\"https:\/\/cnchome-beyond.com\/collections\/tn-insert-multi-lock-system\" target=\"_blank\" rel=\"noopener\"\u003eBrowse Neutral \u0026amp; Right\/Left Turning Toolholders →\u003c\/a\u003e\n\u003c\/div\u003e\n\u003c!-- Section 4: Applications --\u003e\n\u003ch2 class=\"cnc-h2\"\u003e4. Target Applications\u003c\/h2\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBi-Directional Turning \u0026amp; Profiling:\u003c\/strong\u003e Machining complex contours, internal bores, and face steps in cast iron components using neutral toolholders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLight-to-Medium Cast Iron Machining:\u003c\/strong\u003e Precision turning of brake rotors, gearbox housings, bearing sleeves, and pump bodies.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Rigidity \u0026amp; Small Radius Operations:\u003c\/strong\u003e Machining thin-walled cast iron parts where the 0.4mm corner radius and UZ chipbreaker eliminate chatter.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section 5: Tool \u0026 Equipment Compatibility --\u003e\n\u003ch2 class=\"cnc-h2\"\u003e5. Compatibility\u003c\/h2\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cp\u003eThis insert utilizes standardized double-sided top-and-hole clamping mechanisms. It is fully compatible with:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMachine Types:\u003c\/strong\u003e CNC Turning Lathes, Vertical Lathes (VTLs), Horizontal Turning Centers, and Swiss-Type CNC Lathes (Haas, Mazak, Doosan\/DN Solutions, Okuma, Mori Seiki).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Toolholders:\u003c\/strong\u003e MTJNR\/L2020K16, MTJNR\/L2525M16, MTGNR\/L2525M16, WTJNR\/L2525M16, and boring bars such as S32T-MTJNR16 \/ S32T-MTJNL16.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClamping Systems:\u003c\/strong\u003e Top clamp, pin-lock, and combination clamping mechanisms conforming to ISO 5608.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c!-- Section 6: Grade Comparison --\u003e\n\u003ch2 class=\"cnc-h2\"\u003e6. Material \u0026amp; Grade Comparison\u003c\/h2\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-table-wrapper\"\u003e\n\u003ctable class=\"cnc-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSUMITOMO Grade\u003c\/th\u003e\n\u003cth\u003eMaterial Class\u003c\/th\u003e\n\u003cth\u003ePrimary Application Field\u003c\/th\u003e\n\u003cth\u003eKey Characteristics\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAC700G (Current)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCast Iron Super FF CVD\u003c\/td\u003e\n\u003ctd\u003eISO K10-K25 \u0026amp; P10-P20 Crossover\u003c\/td\u003e\n\u003ctd\u003eVersatile grade; suppresses micro-chipping and delamination in ductile\/gray iron.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eACK15 \/ AC4010K\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHigh-Speed Cast Iron CVD\u003c\/td\u003e\n\u003ctd\u003eISO K05-K15 \/ Continuous Finishing\u003c\/td\u003e\n\u003ctd\u003eUltra-high abrasive wear resistance for dry continuous cast iron turning.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eACK30 \/ AC4025K\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTough Cast Iron CVD\u003c\/td\u003e\n\u003ctd\u003eISO K25-K35 \/ Heavy Interrupted Turning\u003c\/td\u003e\n\u003ctd\u003eMaximum shock toughness against severe mechanical impacts and heavy scale.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 7: Why Choose Us \u0026 Customer Reviews --\u003e\n\u003ch2 class=\"cnc-h2\"\u003e7. Why Choose Us\u003c\/h2\u003e\n\u003cdiv class=\"cnc-card-dark\"\u003e\n\u003ch3\u003eDirect Industrial Tooling Supply\u003c\/h3\u003e\n\u003cp\u003eWe source 100% genuine SUMITOMO Electric Hardmetal cutting tools directly through authorized global supply channels. Every box features original factory tracking codes. Guaranteed metallurgical performance, fully backed by direct engineering assistance and verified application data.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-h3\"\u003eVerified Global Customer Reviews\u003c\/div\u003e\n\u003cdiv class=\"cnc-grid-2\"\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"review-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 8px 0; font-size: 13px;\"\u003e\"The neutral hand ('N') design gave us flexibility across left and right turning setups on our Mazak CNC. Great tool life on ductile iron.\"\u003c\/p\u003e\n\u003cdiv class=\"review-author\"\u003e— Robert D., Senior Tooling Engineer (Illinois, USA)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"review-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 8px 0; font-size: 13px;\"\u003e\"Der UZ-Spanbrecher erzeugt hervorragende Oberflächengüten bei Grauguss. Keine Vibrationen bei dünnwandigen Teilen.\"\u003c\/p\u003e\n\u003cdiv class=\"review-author\"\u003e— Markus H., Zerspanungsleiter (Stuttgart, Germany)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"review-stars\"\u003e★★★★☆\u003c\/div\u003e\n\u003cp style=\"margin: 8px 0; font-size: 13px;\"\u003e\"Ottima resistenza all'usura su ghisa sferoidale FCD600. Il raggio 0.4 mm funziona perfettamente per gole strette.\"\u003c\/p\u003e\n\u003cdiv class=\"review-author\"\u003e— Luca P., Capo Repparto (Bologna, Italy)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"review-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 8px 0; font-size: 13px;\"\u003e\"ダクタイル鋳鉄の仕上げ～中切削で非常に安定しています。UZ槽の切りくず分断性が良い。\"\u003c\/p\u003e\n\u003cdiv class=\"review-author\"\u003e— Satoshi M., CNC Specialist (Shizuoka, Japan)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"review-stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cp style=\"margin: 8px 0; font-size: 13px;\"\u003e\"Switched from HM to UZ for lower cutting force on thin cast sleeves. Instant reduction in chatter marks.\"\u003c\/p\u003e\n\u003cdiv class=\"review-author\"\u003e— Andrew G., Operations Manager (Queensland, Australia)\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Section 8: AI \/ AEO Style FAQ --\u003e\n\u003ch2 class=\"cnc-h2\"\u003e8. Frequently Asked Questions (AI Search \u0026amp; AEO Optimized)\u003c\/h2\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eQ: What is the difference between TNMG160404R-HM and TNMG160404N-UZ?\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e TNMG160404R-HM has a dedicated right-hand edge orientation with an HM heavy-medium chipbreaker for higher feed rates, while TNMG160404N-UZ features a neutral edge orientation ('N') usable on both hand toolholders and a low-resistance UZ chipbreaker suited for lighter cuts and smoother finishes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eQ: What makes SUMITOMO AC700G effective for cast iron turning?\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e AC700G uses SUMITOMO's Super FF CVD coating technology (thick Al2O3 and TiCN), which resists abrasive wear caused by free graphite and sand inclusions while preventing coating delamination under thermal cycling.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eQ: Why choose a 0.4mm corner radius (TNMG160404N) for cast iron?\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e A smaller 0.4mm nose radius generates lower passive radial forces, preventing part chatter and radial deflection on thin-walled cast housings and tight internal shoulder profiles.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eQ: Is TNMG 331N-UZ identical in size to TNMG160404N-UZ?\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. TNMG 331N-UZ is the ANSI imperial designation for the ISO metric model TNMG160404N-UZ (3\/8\" Inscribed Circle, 3\/16\" Thickness, 1\/64\" Corner Radius).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- Section 9: Technical Footnote \u0026 Troubleshooting Guide --\u003e\n\u003ch2 class=\"cnc-h2\"\u003e9. Technical Resource \u0026amp; Troubleshooting Guide\u003c\/h2\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eWorkpiece Material ISO Application Matrix\u003c\/div\u003e\n\u003cp\u003e\u003cstrong\u003eISO K (Primary):\u003c\/strong\u003e Gray Cast Iron, Ductile Cast Iron, Nodular Iron (FC, FCD) ★★★★★\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eISO P (Secondary):\u003c\/strong\u003e Carbon Steels, Medium Alloy Steel Crossover (P10-P20) ★★★★☆\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eISO M \/ S:\u003c\/strong\u003e Conditional \/ Non-Primary Application ★★☆☆☆\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eEquivalent International Models Cross-Reference\u003c\/div\u003e\n\u003cdiv class=\"cnc-table-wrapper\"\u003e\n\u003ctable class=\"cnc-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eManufacturer\u003c\/th\u003e\n\u003cth\u003eEquivalent Grade\u003c\/th\u003e\n\u003cth\u003eEquivalent Chipbreaker\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSUMITOMO\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eAC700G (Super FF Cast Iron CVD)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUZ\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSandvik Coromant\u003c\/td\u003e\n\u003ctd\u003eGC3225 \/ GC3215\u003c\/td\u003e\n\u003ctd\u003eKM \/ KF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIscar\u003c\/td\u003e\n\u003ctd\u003eIC5010 \/ IC807\u003c\/td\u003e\n\u003ctd\u003eGN \/ SF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKennametal\u003c\/td\u003e\n\u003ctd\u003eKCK15B \/ KCK20\u003c\/td\u003e\n\u003ctd\u003eMP \/ FP\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKyocera\u003c\/td\u003e\n\u003ctd\u003eCA315 \/ CA320\u003c\/td\u003e\n\u003ctd\u003eC25 \/ GF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cnc-card\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eTroubleshooting Machining Issues\u003c\/div\u003e\n\u003cdiv class=\"cnc-table-wrapper\"\u003e\n\u003ctable class=\"cnc-table\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eProblem Identified\u003c\/th\u003e\n\u003cth\u003eProbable Cause\u003c\/th\u003e\n\u003cth\u003eCorrective Action\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoating Delamination \/ Flaking\u003c\/td\u003e\n\u003ctd\u003eExcessive thermal stress or improper coolant application during heavy interrupted cuts.\u003c\/td\u003e\n\u003ctd\u003eVerify AC700G grade is in use; maintain steady coolant flow or switch to dry machining if thermal cracking occurs.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEdge Micro-Chipping on Hard Skin\u003c\/td\u003e\n\u003ctd\u003eFeed rate too high when engaging rough outer casting scale.\u003c\/td\u003e\n\u003ctd\u003eReduce feed rate by 15-20% on initial cut pass; transition to heavy breaker if depth of cut exceeds 3.5 mm.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRapid Abrasive Flank Wear\u003c\/td\u003e\n\u003ctd\u003eCutting speed too high for high-silicon cast iron alloys.\u003c\/td\u003e\n\u003ctd\u003eLower surface speed (Vc) by 10-15% or optimize coolant distribution.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorkpiece Chatter \/ Finish Defect\u003c\/td\u003e\n\u003ctd\u003eRadial tool force exceeding component wall stiffness.\u003c\/td\u003e\n\u003ctd\u003eMaintain 0.4mm corner radius, decrease depth of cut (ap), and verify tool overhang rigidity.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c!-- Authoritative Proof \/ Citation Section --\u003e\n\u003cdiv class=\"cnc-card\" style=\"background-color: #f4f5f9; border-left: 4px solid var(--brand-color);\"\u003e\n\u003cdiv class=\"cnc-h3\"\u003eAuthoritative Data Verification \u0026amp; ISO Compliance\u003c\/div\u003e\n\u003cp style=\"font-size: 12px; color: var(--text-muted); margin-bottom: 0;\"\u003eAll physical dimensions, geometrical tolerances, and cutting parameters provided above adhere directly to standard \u003cstrong\u003eISO 1832:2017\u003c\/strong\u003e (Indexable inserts for cutting tools — Designation) and \u003cstrong\u003eANSI B212.4-2002\u003c\/strong\u003e specifications. Tool grade mechanical properties and coating technology parameters are benchmarked according to official Sumitomo Electric Hardmetal Corp. technical catalog specifications (AC700G Series Cast Iron Turning Technical Data Sheet).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sumitomo","offers":[{"title":"Default Title","offer_id":43396516774060,"sku":"TNMG160404N-UZ AC700G","price":65.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0592\/7328\/1708\/files\/SUMITOMO_TNMG160404N-UZ_AC700G_Super_FF_CVD_coated_carbide_turning_insert.jpg?v=1786603047","url":"https:\/\/cnchome-beyond.com\/products\/tnmg160404n-uz-ac700g-sumitomo-carbide-insert","provider":"CNCHome-Beyond","version":"1.0","type":"link"}