{"product_id":"seco-02959985-turning-insert-tnmg432-m3-tp2501-carbide","title":"Seco 02959985 Turning Insert TNMG432-M3 TP2501 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SECO 02959985 is a triangular solid carbide turning insert in the TNMG-M3 series, designed for precision metal-cutting operations on CNC and manual lathes. Carrying the TP2501 Duratomic grade designation, this insert features a CVD-applied multilayer coating of TiCN, Al2O3, and Cr that provides thermal resistance and extended edge life. The negative rake geometry and M3 chip breaker geometry deliver controlled chip formation across a wide range of cutting parameters. With 6 usable cutting edges per insert, it offers a strong cost-per-edge value for high-volume turning environments. Licensed machinists, toolroom operators, and CNC programmers specify this insert for demanding continuous and interrupted steel cutting applications.\u003c\/p\u003e\u003cp\u003eThe SECO 02959985 is suited for back turning, boring, facing, and turning operations on steel, stainless steel, and cast iron workpieces. It targets ISO material groups P, M, and K, with material grades P10, P20, P30, and P35 covering a broad spectrum of steel hardness and alloy content. The M3 chip breaker geometry is engineered for medium-duty cutting where consistent chip control and edge stability are required. This insert is particularly effective in production environments where multiple setups share a common toolholder platform.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD Duratomic multilayer coating: TiCN, Al2O3, and Cr for heat resistance and wear life\u003c\/li\u003e\n\u003cli\u003e6 cutting edges per insert for low cost-per-edge in production turning\u003c\/li\u003e\n\u003cli\u003eM3 chip breaker geometry for controlled chip formation on steel and stainless\u003c\/li\u003e\n\u003cli\u003eChamfered and honed cutting edge style for edge strength and surface finish consistency\u003c\/li\u003e\n\u003cli\u003eCompatible with clamp, pin, and lever lock insert holding methods\u003c\/li\u003e\n\u003cli\u003eConforms to ANSI and ISO standards; ISO code TNMG220408-M3\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in TNMG-style toolholders that accept a triangular insert with a 0.5000-inch inscribed circle, N clearance, and M tolerance. Compatible with clamp, pin, and lever lock holding methods. Suitable for applications targeting ISO P, M, and K workpiece material groups.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or toolroom personnel following standard insert indexing procedures. Power down and de-energize the machine before indexing or replacing inserts. Use the correct torque wrench and seating screw specified by the toolholder manufacturer to secure the insert; do not hand-tighten only. Inspect the insert pocket and seating surface for chips or debris before mounting to ensure proper seating and avoid premature edge failure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: TNMG432-M3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: TNMG220408-M3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: TP2501\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Triangle (60 degree included angle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN, Al2O3, Cr (CVD Duratomic)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: M3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Chamfered and Honed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle (Clearance Code)\u003c\/strong\u003e: N (0 degrees)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches (1\/2 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1874 inches (3\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.8661 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0315 inches (1\/32 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2028 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.7874 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp, Pin, Lever Lock\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (P)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Stainless Steel (M), Cast Iron (K)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: P10, P20, P30, P35\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Use Application\u003c\/strong\u003e: Back Turning, Boring, Facing, Turning\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 insert per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SECO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 02959985\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51564127977778,"sku":"02959985","price":309.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/28092ef9c959ada99008eaefd8b0a8e2_af66b3fe-1088-4133-aefe-5555687df879.jpg?v=1786511684","url":"https:\/\/voomisupply.com\/products\/seco-02959985-turning-insert-tnmg432-m3-tp2501-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}