{"product_id":"sandvik-coromant-7860979-wnmg332-pm-4425-turning-insert","title":"Sandvik Coromant 7860979 WNMG332-PM 4425 Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 7860979 is a WNMG332-PM 4425 grade solid carbide turning insert designed for external turning operations on CNC lathes and turning centers. Part of the T-Max P series, it features a trigon (80-degree included angle) insert shape with a neutral hand orientation and a 3\/8-inch inscribed circle. The CVD-applied multilayer coating stack -- Al2O3, TiN, and TiCN -- delivers thermal resistance and wear protection suited to interrupted and continuous cuts. The PM chip breaker geometry is engineered for positive chip control across a broad feed and depth-of-cut range, making this insert a practical choice for production turning environments.\u003c\/p\u003e\u003cp\u003eThis insert is primarily rated for steel (ISO P) and cast iron (ISO K) workpiece materials, covering the most common turning applications in general machining, automotive component work, and job-shop production. It seats in toolholders that accept WNMG-style inserts secured by clamp or screw holding methods. The clearance code N (0-degree relief angle) and tolerance code M identify the seating geometry. Six cutting edges per insert reduce per-edge tooling cost in high-volume operations. The ISO designation WNMG 06 04 08-PM 4425 cross-references directly to catalog number WNMG 332-PM for procurement and toolholder compatibility verification.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eT-Max P series, grade 4425 -- CVD multilayer coating (Al2O3, TiN, TiCN) for extended tool life on steel and cast iron\u003c\/li\u003e\n\u003cli\u003e80-degree trigon insert shape (W) with neutral hand -- fits standard WNMG toolholder pockets\u003c\/li\u003e\n\u003cli\u003ePM chip breaker geometry for reliable chip control across variable feeds and depths\u003c\/li\u003e\n\u003cli\u003eSix usable cutting edges per insert for cost-efficient indexing\u003c\/li\u003e\n\u003cli\u003e3\/8-inch (0.3750 inch) inscribed circle with 1\/32-inch (0.0313 inch) corner radius\u003c\/li\u003e\n\u003cli\u003eCompatible with clamp and screw insert holding methods\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in WNMG-style turning insert pockets with clamp or screw holding methods. ISO code WNMG 06 04 08-PM 4425 should be used to verify toolholder and insert seat compatibility. Primary workpiece materials are steel (ISO P) and cast iron (ISO K).\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine before indexing or replacing inserts. Use the correct torque wrench and manufacturer-specified fastener for the insert screw or clamp to avoid insert movement or seat damage during cutting. Inspect the insert pocket and seating surface for chips or debris before seating a new insert edge.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: WNMG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: WNMG 06 04 08-PM 4425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T-Max P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 4425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Trigon (80-degree included angle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: PM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Finish\u003c\/strong\u003e: Al2O3, TiN, TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/32 inches (0.0313 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 3\/16 inches (0.1875 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\u003eNumber of Cutting Edges\u003c\/strong\u003e: 6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle (Clearance Code)\u003c\/strong\u003e: 0 degrees (N)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp, 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\u003eWiper Edge\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.44 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: SANDVIK COROMANT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7860979\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51739274805554,"sku":"7860979","price":226.65,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ce4e77d1a28e1bbc06dc452c4a25056e_fec3f876-9fa6-4a8c-8fa3-d5de95b5f6cb.jpg?v=1788812561","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7860979-wnmg332-pm-4425-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}