{"product_id":"sandvik-coromant-7861236-turning-insert-tnmm432-pr-4425","title":"Sandvik Coromant 7861236 Turning Insert TNMM432-PR 4425","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 7861236 is a TNMM432-PR solid carbide turning insert in the T-Max P series, designed for external and internal turning operations on CNC lathes and turning centers. The insert features a triangular shape with a 60-degree included angle, a 0.5 inch inscribed circle, and a 0.0313 inch (1\/32 inch) corner radius. It carries a CVD-applied multilayer coating consisting of Al2O3, TiN, and TiCN over a carbide substrate graded 4425. This combination delivers wear resistance and thermal stability suited to continuous and interrupted cuts in steel and cast iron applications. A neutral hand orientation makes it compatible with a wide range of standard toolholders using clamp or screw holding methods.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for production turning on steel and cast iron workpieces, corresponding to ISO material groups P and K. Typical applications include shaft turning, facing, and general-purpose profiling in both light and moderate material removal scenarios. The PR chip breaker geometry is engineered to handle a range of depths of cut and feed rates commonly encountered in production environments. Machinists and CNC operators in job shops, manufacturing facilities, and production lines will find this insert well suited to medium-duty turning programs where consistent edge life and chip control are priorities.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCVD multilayer coating: Al2O3, TiN, and TiCN for wear resistance and thermal protection\u003c\/li\u003e\n  \u003cli\u003eGrade 4425 carbide substrate optimized for steel (ISO P) and cast iron (ISO K) cutting\u003c\/li\u003e\n  \u003cli\u003ePR chip breaker geometry for controlled chip formation across a range of feeds and depths\u003c\/li\u003e\n  \u003cli\u003eTriangular insert shape with 3 usable cutting edges to extend tool economy\u003c\/li\u003e\n  \u003cli\u003eNeutral hand orientation compatible with standard TNMM-style toolholders\u003c\/li\u003e\n  \u003cli\u003eClamp and screw holding method compatibility for secure, repeatable seating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in TNMM-style toolholders accepting a 0.5 inch inscribed circle triangular insert with a 0.2030 inch hole diameter. ISO code TNMM 22 04 08-PR 4425. Compatible with standard TNMM 432-style seats using clamp or screw clamping. Primary workpiece materials are steel (ISO P) and cast iron (ISO K).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInsert replacement should be performed by a qualified machinist or CNC setup technician with the machine powered down, spindle locked, and all motion axes at rest. Use the appropriate torque wrench and manufacturer-specified clamping hardware when seating the insert to ensure proper contact with the toolholder pocket. Inspect the insert pocket for wear, debris, or damage before installing a new insert, as a compromised seat will reduce edge life and dimensional accuracy. Dispose of worn carbide inserts in accordance with local regulations for carbide and heavy-metal materials.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: TNMM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Triangle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 60 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0313 inches (1\/32 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2030 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 4425\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Al2O3, TiN, TiCN (CVD process)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: PR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp and Screw\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: Cast Iron (ISO K)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T-Max P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: TNMM 22 04 08-PR 4425\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 5.08 inches (L) x 2.13 inches (W) x 0.54 inches (H)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.54 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: SANDVIK COROMANT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7861236\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51732822884658,"sku":"7861236","price":306.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9aaa91b9f07a37c1da98f091c6cf2823.jpg?v=1788747207","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7861236-turning-insert-tnmm432-pr-4425","provider":"Voomi Supply","version":"1.0","type":"link"}