{"product_id":"sandvik-coromant-7860799-turning-insert-dnmg431-pf-4425","title":"Sandvik Coromant 7860799 Turning Insert DNMG431-PF 4425","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 7860799 is a DNMG431-PF 4425 turning insert designed for external turning operations on CNC lathes and turning centers. It is manufactured from solid carbide with a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, delivering wear resistance and thermal stability across a range of cutting conditions. The insert features a 55-degree diamond shape (Insert Shape Code D), a neutral hand orientation, and a 0.40 mm (0.0156 inch) corner radius. With a 0.5000-inch (12.70 mm) inscribed circle and the PF chip breaker geometry, this insert is suited for finishing and semi-finishing passes. It is installed by machinists and CNC operators in precision turning applications.\u003c\/p\u003e\u003cp\u003eThis insert is intended for primary use on steel workpieces (ISO material code P) and secondary use on cast iron (ISO material code K). It fits into the T-Max P tooling series and is used in residential shop, production, and contract machining environments where consistent chip control and surface finish are required on ferrous materials. Typical applications include shaft turning, facing, and profiling operations at moderate to high cutting speeds.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD multilayer coating: TiCN, Al2O3, and TiN for enhanced wear and heat resistance\u003c\/li\u003e\n\u003cli\u003e55-degree diamond insert shape with neutral hand for versatile mounting\u003c\/li\u003e\n\u003cli\u003ePF chip breaker geometry optimized for finishing and semi-finishing on steel\u003c\/li\u003e\n\u003cli\u003e4 cutting edges per insert for extended tool life and cost efficiency\u003c\/li\u003e\n\u003cli\u003eClamp and screw holding method compatible with standard DNMG toolholders\u003c\/li\u003e\n\u003cli\u003eISO code DNMG 15 04 04-PF 4425 for cross-reference with standard toolholder catalogs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in the SANDVIK COROMANT T-Max P tooling series. Compatible with standard DNMG toolholders accepting a 0.5000-inch inscribed circle insert with clamp or screw holding. ISO code DNMG 15 04 04-PF 4425; Manufacturers Catalog Number DNMG 431-PF 4425.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque wrench and clamp hardware specified for the toolholder to secure the insert without over-tightening the clamping screw. Inspect the insert seat and chip groove for debris before seating a new insert to ensure proper contact and edge presentation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: DNMG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: DNMG 15 04 04-PF 4425\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 Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 4425\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\u003eCorner Radius\u003c\/strong\u003e: 0.40 mm (0.0156 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches (12.70 mm)\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\u003eChip Breaker\u003c\/strong\u003e: PF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHolding Method\u003c\/strong\u003e: Clamp and Screw\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\u003eSeries\u003c\/strong\u003e: T-Max P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 2.13 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 5.08 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.53 inches\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: 7860799\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51732221690162,"sku":"7860799","price":44.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/be52c1c57882b3cd5a14a16883b8ea39_b6409445-75d4-4520-9101-4fb4ac2f5b24.jpg?v=1788740573","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7860799-turning-insert-dnmg431-pf-4425","provider":"Voomi Supply","version":"1.0","type":"link"}