{"product_id":"sandvik-coromant-7860758-turning-insert-snmg643-pr-4425","title":"Sandvik Coromant 7860758 Turning Insert SNMG643-PR 4425","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 7860758 is a SNMG-style square turning insert from the T-Max P series, designed for external turning operations on CNC lathes and turning centers. This solid carbide insert features a CVD-applied multilayer coating of Al2O3, TiN, and TiCN, delivering heat resistance and wear protection during continuous and interrupted cuts. It carries a manufacturer grade of 4425, optimized for steel and cast iron workpieces. The neutral hand orientation makes it suitable for both right- and left-hand toolholders. With 8 available cutting edges per insert, it offers extended tool life per unit. Machinists and CNC operators in production and job-shop environments are the primary installers of this insert.\u003c\/p\u003e\u003cp\u003eThis insert is intended for medium to semi-finishing turning passes on steel (ISO P) and cast iron (ISO K) workpieces. The PR chip breaker geometry is suited for productive cutting with controlled chip formation. It fits standard SNMG-compatible toolholders that accept clamp and screw holding methods. Typical applications include shaft turning, facing, and profile turning on general-purpose lathes in both light manufacturing and heavy production environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD multilayer coating: Al2O3, TiN, TiCN for thermal and abrasion resistance\u003c\/li\u003e\n\u003cli\u003eManufacturer grade 4425 optimized for steel (ISO P) and cast iron (ISO K)\u003c\/li\u003e\n\u003cli\u003eSquare insert shape (S) with 8 usable cutting edges\u003c\/li\u003e\n\u003cli\u003ePR chip breaker geometry for controlled chip evacuation\u003c\/li\u003e\n\u003cli\u003eNeutral hand orientation for use in both right- and left-hand toolholders\u003c\/li\u003e\n\u003cli\u003eClamp and screw holding method for rigid, repeatable seating\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement insert for SNMG-compatible turning toolholders accepting clamp and screw retention. ISO code SNMG 19 06 12-PR 4425. Compatible toolholders must accommodate a 3\/4-inch (0.7500-inch) inscribed circle and a 0.3120-inch hole diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert replacement should be performed with the machine powered down and the spindle fully stopped. Use the toolholder manufacturer's specified clamping torque procedure and verify the insert seats fully against the pocket locating surfaces before resuming cuts. Inspect the insert pocket for chips or debris before seating a new edge. Always handle carbide inserts with care to avoid chipping the cutting edge prior to use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: SNMG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Square (S)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 4425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T-Max P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Al2O3, TiN, TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: PR\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: 3\/4 inches (0.7500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1.19 mm (0.0469 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 1\/4 inches (0.2500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.3120 inches (7.93 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 8\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\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\u003eISO Code\u003c\/strong\u003e: SNMG 19 06 12-PR 4425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\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\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: 7860758\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51730816696626,"sku":"7860758","price":556.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/76c9dbe0f76ae78b7cc6d6068cd2df11_8ecf0ae4-0a99-4f8f-9044-ba2c47dd5001.jpg?v=1788723321","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7860758-turning-insert-snmg643-pr-4425","provider":"Voomi Supply","version":"1.0","type":"link"}