{"product_id":"sandvik-coromant-7859042-turning-insert-cnmg432-pf-4415","title":"Sandvik Coromant 7859042 Turning Insert CNMG432-PF 4415","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 7859042 is a CNMG432-PF 4415 indexable turning insert designed for external and internal turning operations on CNC lathes and turning centers. Part of the T-Max P series, this insert features a solid carbide substrate with a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, providing wear resistance and thermal protection during continuous and interrupted cuts. The 80-degree diamond insert shape (ISO code CNMG 12 04 08-PF 4415) delivers four usable cutting edges. With a 0.5-inch inscribed circle and a 0.79 mm (0.0313 inch) corner radius, it suits medium to roughing passes on steel and cast iron. A licensed machinist or CNC operator installs and indexes this insert.\u003c\/p\u003e\n\u003cp\u003eThis insert is engineered primarily for steel (ISO material code P) with cast iron (ISO material code K) as the secondary workpiece material. The PF chip breaker geometry is optimized for finishing to medium turning passes where controlled chip formation matters. The neutral hand orientation suits a wide range of standard CNMG toolholders. It is commonly used in production turning environments, job shops, and maintenance machining where consistent tool life and predictable surface finish are required on ferrous materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCVD multilayer coating: TiCN, Al2O3, and TiN for thermal and abrasion resistance\u003c\/li\u003e\n  \u003cli\u003e80-degree diamond insert shape with 4 usable cutting edges for extended tool life\u003c\/li\u003e\n  \u003cli\u003e0.79 mm corner radius balances surface finish quality with edge strength\u003c\/li\u003e\n  \u003cli\u003ePF chip breaker geometry suited for finishing to medium turning passes on steel\u003c\/li\u003e\n  \u003cli\u003eT-Max P series construction with clamp and screw holding method compatibility\u003c\/li\u003e\n  \u003cli\u003eNeutral hand orientation for broad toolholder compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement and standard stocking insert for CNMG 432 toolholders accepting clamp or screw holding methods with clearance code N and tolerance code M. ISO catalog designation is CNMG 12 04 08-PF 4415. Primary application is steel; secondary application is cast iron.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified CNC machinist or toolroom technician. Power down and de-energize the machine before indexing or replacing inserts. Use the appropriate torque wrench and manufacturer-specified clamp or screw hardware for the toolholder; do not over-tighten the clamping screw, as this can damage the insert seat or fracture the carbide. Confirm insert seating and clearance before resuming cuts.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: CNMG 12 04 08-PF 4415\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: CNMG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond (80 degrees)\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: 4415\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN, Al2O3, TiN (CVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: PF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches (12.70 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.79 mm (0.0313 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (4.76 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\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\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\u003eHolding 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\u003ePackage Dimensions\u003c\/strong\u003e: 3.74 inches length, 1.54 inches width, 0.43 inches height\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\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: 7859042\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51748346593586,"sku":"7859042","price":257.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ea98c3751e8fce5f3b86e0fc4420a04b_8b7b7cc9-9721-4e9f-9e85-1273c4813be1.jpg?v=1788892746","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7859042-turning-insert-cnmg432-pf-4415","provider":"Voomi Supply","version":"1.0","type":"link"}