{"product_id":"seco-03276270-turning-insert-dnmg431-mf4-tm2501-carbide","title":"Seco 03276270 Turning Insert DNMG431-MF4 TM2501 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SECO 03276270 is a DNMG431-MF4 series indexable turning insert manufactured from solid carbide and finished with a CVD-applied Duratomic multilayer coating of TiCN, Al2O3, and Cr. It carries a 55-degree diamond shape (Insert Shape Code D), a neutral hand orientation, and a 1\/64-inch corner radius. The MF4 chip breaker geometry and chamfered-and-honed cutting edge are designed to handle medium-to-rough material removal with controlled chip formation. Four usable cutting edges are available per insert. This insert is intended for use by CNC machinists and lathe operators in production turning environments.\u003c\/p\u003e\n\u003cp\u003eThe 03276270 is suited for turning, facing, boring, and back turning operations. Its primary target workpiece material is stainless steel (ISO material group M), with steel (ISO group P) as the secondary application. Material grades M25, M30, and M35 indicate suitability for medium to medium-rough cutting conditions. It fits toolholders designed for the DNMG insert style with clamp, pin, or lever-lock holding methods. The insert conforms to both ANSI and ISO standards, with an ISO designation of DNMG150404-MF4.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eDuratomic CVD multilayer coating (TiCN, Al2O3, Cr) for wear resistance in stainless and steel applications\u003c\/li\u003e\n  \u003cli\u003eMF4 chip breaker geometry for controlled chip formation during medium-to-rough cuts\u003c\/li\u003e\n  \u003cli\u003eFour cutting edges per insert for extended tooling economy\u003c\/li\u003e\n  \u003cli\u003eChamfered and honed cutting edge style for edge strength and reduced built-up edge\u003c\/li\u003e\n  \u003cli\u003eNegative rake angle with 0-degree relief (Clearance Code N, Tolerance Code M)\u003c\/li\u003e\n  \u003cli\u003eCompatible with clamp, pin, and lever-lock toolholder holding methods\u003c\/li\u003e\n  \u003cli\u003eConforms to ANSI and ISO standards (ISO: DNMG150404-MF4)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for DNMG-style indexable turning toolholders that accept a 55-degree diamond insert with a 0.2028-inch hole diameter, using clamp, pin, or lever-lock holding methods. Verify toolholder pocket geometry against the DNMG431 insert size code before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by CNC machinists or toolroom technicians. Shut down the machine and release all axis movement before changing inserts. Use the appropriate torque wrench or clamping key specified by the toolholder manufacturer when securing the clamp, pin, or lever-lock mechanism — do not over-tighten by hand. Inspect the toolholder pocket seating surface for chips or wear before seating a new insert.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: DNMG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: DNMG-MF4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: DNMG431-MF4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: DNMG150404-MF4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond 55 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: TM2501\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN, Al2O3, Cr (Duratomic)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: MF4\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\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 30 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: N\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: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 1\/2 inch (0.5000 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 33\/64 inch (1.2204 inches decimal equivalent listed in supplier data; 0.5154 inches max depth of cut)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 3\/16 inch (0.1875 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: 0.2028 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.5154 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: Stainless Steel (ISO Code M)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Steel (ISO Code P)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M25, M30, M35\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\u003eWeight\u003c\/strong\u003e: 0.24 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 insert per package (MOQ 10)\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: 03276270\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SECO TOOLS","offers":[{"title":"Default Title","offer_id":51562580803890,"sku":"03276270","price":320.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6ccf6318b6802665a7793a8942820e84_bee4161a-4904-4d6a-834c-653c448e74d8.jpg?v=1786480003","url":"https:\/\/voomisupply.com\/products\/seco-03276270-turning-insert-dnmg431-mf4-tm2501-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}