{"product_id":"sandvik-coromant-7860991-wnmg432-pm-4425-turning-insert","title":"Sandvik Coromant 7860991 WNMG432-PM 4425 Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 7860991 is a WNMG432-PM 4425 trigon turning insert designed for external turning operations on CNC lathes and turning centers. Built from solid carbide with a CVD-applied multilayer coating of Al2O3, TiCN, and TiN, this insert is engineered for wear resistance and thermal stability during continuous and interrupted cuts. The 80-degree included angle of the trigon shape provides six usable cutting edges per insert, and the neutral hand orientation suits a wide range of toolholder setups. The PM chip breaker geometry is optimized for steel turning at moderate to high feed rates.\u003c\/p\u003e\u003cp\u003eThis insert fits the T-Max P series toolholding system and is intended for production turning of steel and cast iron workpieces in both residential shop and industrial manufacturing environments. Typical applications include shaft turning, facing, and profiling on ferrous materials. The WNMG432-PM 4425 designation follows ISO standard WNMG 08 04 08-PM 4425, making cross-referencing with other tooling systems straightforward for machinists and tool-crib managers. It is installed and changed by machinists and CNC setup technicians.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD multilayer coating: Al2O3, TiCN, and TiN for high-temperature wear resistance\u003c\/li\u003e\n\u003cli\u003e80-degree trigon insert shape with six cutting edges per insert\u003c\/li\u003e\n\u003cli\u003ePM chip breaker geometry suited for steel turning at moderate to high feed rates\u003c\/li\u003e\n\u003cli\u003eNeutral hand orientation compatible with a broad range of WNMG-style toolholders\u003c\/li\u003e\n\u003cli\u003eClamp and screw holding method for secure, repeatable seating\u003c\/li\u003e\n\u003cli\u003eISO code WNMG 08 04 08-PM 4425 for straightforward cross-referencing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in the T-Max P series toolholding system. Primary workpiece material is steel (ISO P); secondary workpiece material is cast iron (ISO K). Compatible with WNMG-style toolholders accepting a 0.5000-inch inscribed circle insert with clamp or screw holding.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert replacement should be performed with the machine spindle stopped and all power isolated per shop lockout\/tagout procedures. Use the appropriate torx or hex key to seat the clamp or screw firmly without over-torquing. Inspect the insert pocket and shim for wear or debris before seating a new insert. Verify correct insert orientation and hand before resuming cuts.\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 08 04 08-PM 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\u003eManufacturer Grade\u003c\/strong\u003e: 4425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Al2O3, TiCN, 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: PM\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: 6\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 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inches)\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\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\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\u003eSeries\u003c\/strong\u003e: T-Max P\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: 7860991\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51748728865074,"sku":"7860991","price":37.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ce4e77d1a28e1bbc06dc452c4a25056e_feac9fb4-7443-4897-8d36-4bd7db2b28a1.jpg?v=1788897405","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7860991-wnmg432-pm-4425-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}