{"product_id":"sandvik-coromant-7860860-turning-insert-snmg643-qm-4425","title":"Sandvik Coromant 7860860 Turning Insert SNMG643-QM 4425","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 7860860 is a square-shaped carbide turning insert in the T-Max P series, designed for external and internal turning operations on CNC lathes and turning centers. It carries the SNMG 19 06 12-QM 4425 ISO designation and features a multilayer CVD coating of Al2O3, TiN, and TiCN applied over a carbide substrate. The 4425 grade is engineered for cutting steel and cast iron at production feed rates. The QM chip breaker geometry promotes controlled chip evacuation across a broad range of cutting depths and feed rates. Machinists and CNC operators install this insert in SNMG-compatible toolholders for general turning on production lines and job shops.\u003c\/p\u003e\u003cp\u003eThis insert is suited for turning steel (ISO material group P) as the primary workpiece material, with cast iron (ISO material group K) as the secondary application. The T-Max P series is a standard platform for general-purpose turning in both residential machine shops and high-volume production environments. The neutral hand orientation makes it compatible with both right-hand and left-hand toolholder setups. Typical applications include shaft turning, facing, and shoulder work on ferrous components.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD multilayer coating: Al2O3, TiN, and TiCN for wear resistance and thermal stability\u003c\/li\u003e\n\u003cli\u003eSquare insert shape (S) with 8 cutting edges for maximum index count per insert\u003c\/li\u003e\n\u003cli\u003eQM chip breaker geometry for productive steel and cast iron turning\u003c\/li\u003e\n\u003cli\u003eNeutral hand orientation for use in right-hand or left-hand toolholders\u003c\/li\u003e\n\u003cli\u003eClamp and screw holding method compatible with standard SNMG toolholders\u003c\/li\u003e\n\u003cli\u003e4425 manufacturer grade optimized for ISO P and K workpiece materials\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in SNMG-compatible toolholders accepting a 3\/4-inch inscribed circle square insert. ISO code SNMG 19 06 12-QM 4425 governs toolholder slot geometry and seating requirements. Verify toolholder pocket specifications before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert installation and indexing should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before accessing the toolholder pocket. Use the correct torque wrench and insert screw specified by the toolholder manufacturer when securing clamp or screw-style retention. Inspect the insert pocket seat for chips or debris before seating a new insert to ensure proper contact and runout.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: SNMG 19 06 12-QM 4425\u003c\/li\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\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\u003eInsert Material\u003c\/strong\u003e: Carbide\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\u003eChip Breaker\u003c\/strong\u003e: QM\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\u003eSeries\u003c\/strong\u003e: T-Max P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 5.08 inches L x 2.13 inches W x 0.54 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.54 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: 7860860\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51727112667442,"sku":"7860860","price":598.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3414b740075dbd785c7751f2571a9e41.jpg?v=1788673550","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7860860-turning-insert-snmg643-qm-4425","provider":"Voomi Supply","version":"1.0","type":"link"}