{"product_id":"sandvik-coromant-5731728-dnma432-kr-turning-insert","title":"Sandvik Coromant 5731728 DNMA432-KR Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 5731728 is a solid carbide turning insert designed for precision metal cutting in CNC lathe and turning center applications. Identified by the ISO code DNMA 15 04 08-KR 3210, this insert features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN engineered to deliver thermal resistance and extended tool life. The 55-degree diamond shape (Insert Shape Code D) provides a strong cutting geometry with a 0.5789-inch insert length and a 1\/2-inch inscribed circle. A KR chip breaker geometry and 0 degree relief angle (Clearance Code N) make this insert well suited for stable, high-volume turning operations. The manufacturer grade is 3210.\u003c\/p\u003e\u003cp\u003eThis insert is optimized for turning cast iron workpieces, the primary workpiece material code K per ISO classification. It is used in T-Max P series toolholders and fits applications in both production shops and job shops where consistent surface finish and edge integrity on ferrous materials are required. The neutral hand orientation allows fitment in standard right-hand and some left-hand tool systems. The KR chip breaker geometry aids in chip control during medium to heavy depth-of-cut passes on cast iron components.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD multilayer coating: TiCN, Al2O3, and TiN for thermal wear resistance on cast iron\u003c\/li\u003e\n\u003cli\u003e55-degree diamond insert shape with 4 cutting edges for maximum edge utilization\u003c\/li\u003e\n\u003cli\u003eKR chip breaker geometry for controlled chip evacuation in cast iron turning\u003c\/li\u003e\n\u003cli\u003e1\/32-inch corner radius (0.0313 inches) for a balance of edge strength and surface finish\u003c\/li\u003e\n\u003cli\u003eClamp and pin insert holding method for secure seating in T-Max P toolholders\u003c\/li\u003e\n\u003cli\u003eNeutral hand orientation for flexible toolholder compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with SANDVIK COROMANT T-Max P series toolholders accepting DNMA-style inserts with a 1\/2-inch inscribed circle, Tolerance Code M, and Clearance Code N. Compatible with toolholder systems that use clamp and pin holding methods.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eTurning inserts of this type are installed and replaced by qualified machinists or CNC tooling technicians following the toolholder manufacturer's clamping torque and seating procedures. Power down and lock out the machine before indexing or replacing inserts. Inspect the insert pocket and clamping components for wear or debris before seating a new insert. Do not use a damaged or improperly seated insert, as insert failure can cause tool damage or workpiece rejection.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: DNMA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: DNMA 15 04 08-KR 3210\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 Shape Code\u003c\/strong\u003e: D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 3210\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN, Al2O3, TiN\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: KR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron (Code K)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 1\/2 inch (0.5000 inches \/ 12.70 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.5789 inches (14.70 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 3\/16 inch (0.1875 inches \/ 4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/32 inch (0.0313 inches \/ 0.79 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2030 inches (5.16 mm)\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\u003eInsert Holding Method\u003c\/strong\u003e: Clamp and Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T-Max P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 432\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiper Edge\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 5.08 inches L x 2.13 inches W x 0.53 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.4 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: SANDVIK COROMANT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5731728\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51741174235442,"sku":"5731728","price":355.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ece4b6d1101d965e83b43f782514c04c_b4db75c2-952e-407e-b0f3-082132cf8c14.jpg?v=1788829826","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5731728-dnma432-kr-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}