{"product_id":"seco-02959954-turning-insert-dnmu331-m3-tp2501-carbide","title":"Seco 02959954 Turning Insert DNMU331-M3 TP2501 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SECO 02959954 is a solid carbide turning insert in the DNMU-M3 series, designed for high-productivity metal cutting in CNC lathe and turning center applications. Identified by industry standard number DNMU331-M3 and manufactured to Duratomic grade TP2501, this insert features a CVD-applied multilayer coating of TiCN, Al2O3, and Cr for extended tool life and thermal resistance. The 55-degree diamond insert shape (shape code D) provides a balance of strength and accessibility in the cutting zone. With 8 available cutting edges per insert and an M3 chip breaker geometry with a chamfered and honed cutting edge, it delivers consistent chip control across a range of feed rates and depths. The insert weighs 0.01 pounds.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for turning, facing, boring, and back turning operations on steel as the primary workpiece material (ISO P), with secondary applications in stainless steel (ISO M) and cast iron (ISO K). It is appropriate for both roughing and semi-finishing passes, with material grades covering P10, P20, P30, and P35. The negative rake and neutral hand make it compatible with standard DNMU-style toolholders using clamp, pin, or lever lock holding methods. It is well-suited for production environments where consistent insert performance and multi-edge economy are priorities. This insert conforms to both ANSI and ISO standards.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCVD Duratomic multilayer coating (TiCN, Al2O3, Cr) for thermal stability and wear resistance\u003c\/li\u003e\n  \u003cli\u003e8 cutting edges per insert for cost-efficient production use\u003c\/li\u003e\n  \u003cli\u003eM3 chip breaker geometry with chamfered and honed cutting edge style\u003c\/li\u003e\n  \u003cli\u003eNegative rake, neutral hand — fits standard DNMU clamp, pin, and lever lock toolholders\u003c\/li\u003e\n  \u003cli\u003eRated for steel, stainless steel, and cast iron workpiece materials\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI and ISO standards; ISO code DNMU110404-M3\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in DNMU-style toolholders that accept clamp, pin, or lever lock holding methods. Compatible toolholders must accommodate a 3\/8-inch inscribed circle insert with a 0-degree relief angle (clearance code N) and tolerance code M. Suitable for multi-use applications including turning, facing, boring, and back turning on steel, stainless steel, and cast iron workpieces.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the toolholder is secure before seating or indexing the insert. Verify that the toolholder clamp, pin, or lever lock mechanism is rated for the DNMU insert style and that the seating pocket is clean and free of chips before mounting. Follow the machine tool manufacturer and toolholder manufacturer guidelines for clamping torque and insert retention.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: DNMU331-M3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: DNMU110404-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: Diamond 55 (Shape Code D)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 55 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees (Clearance Code N)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 3\/16 inch (0.1874 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.9134 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/64 inch (0.0157 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1500 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.3819 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.3750 inches (11.60 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 8\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\u003eCoating\u003c\/strong\u003e: TiCN, Al2O3, Cr (CVD Duratomic)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD\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 (ISO P)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Stainless Steel (ISO M), Cast Iron (ISO 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\u003eSeries\u003c\/strong\u003e: DNMU-M3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 02959954\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51558983434546,"sku":"02959954","price":265.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4301554-21.jpg?v=1786424814","url":"https:\/\/voomisupply.com\/products\/seco-02959954-turning-insert-dnmu331-m3-tp2501-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}