{"product_id":"sandvik-coromant-7860549-turning-insert-vnmg331-qm-4415","title":"Sandvik Coromant 7860549 Turning Insert VNMG331-QM 4415","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 7860549 is a VNMG-style indexable turning insert in the T-Max P series, designed for external turning operations on CNC lathes and turning centers. It carries ISO code VNMG 16 04 04-QM 4415 and is manufactured from solid carbide with a CVD-applied multilayer coating of Al2O3, TiN, and TiCN. The 4415 grade and QM chip breaker geometry make this insert well suited for medium to roughing passes on steel and cast iron. The insert features a 35-degree diamond shape, a 3\/8-inch inscribed circle, and a 0.0156-inch (0.40 mm) corner radius. It is a neutral-hand insert, usable in both right-hand and left-hand toolholders where VNMG geometry is specified.\u003c\/p\u003e\u003cp\u003eThis insert is intended for production turning in job shop, aerospace, and general machining environments where steel and cast iron are the primary workpiece materials. The QM chip breaker is engineered to manage chip flow during medium-depth passes, reducing built-up edge and heat at the cutting zone. With four cutting edges per insert, it offers efficient tooling economy. It is installed by machinists and toolroom technicians operating manual or CNC turning equipment. The T-Max P series is a well-established SANDVIK COROMANT platform for external turning applications.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD multilayer coating: Al2O3, TiN, and TiCN for heat and wear resistance on steel and cast iron\u003c\/li\u003e\n\u003cli\u003e4415 carbide grade optimized for medium to roughing turning on steel (ISO P) and cast iron (ISO K)\u003c\/li\u003e\n\u003cli\u003eQM chip breaker geometry for controlled chip formation during medium-depth cuts\u003c\/li\u003e\n\u003cli\u003e35-degree diamond insert shape (VNMG) with 4 usable cutting edges per insert\u003c\/li\u003e\n\u003cli\u003eNeutral hand orientation compatible with standard VNMG toolholders\u003c\/li\u003e\n\u003cli\u003eClamp and screw holding method for secure, repeatable insert indexing\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in VNMG-style toolholders accepting a 3\/8-inch inscribed circle, 3\/16-inch thick, VNMG 16 04 insert size. Primary workpiece materials are steel (ISO P) and cast iron (ISO K). ISO code VNMG 16 04 04-QM 4415 and catalog number VNMG 331-QM apply to this insert.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert indexing and replacement should be performed with the machine powered off and the spindle fully stopped. Use the appropriate torque wrench and insert screw per the toolholder manufacturer's specification to seat the insert securely without over-tightening. Inspect the insert pocket and seating surface for chips or debris before indexing to a fresh cutting edge. This work is typically performed by a machinist or toolroom technician following the machine tool builder's tooling change procedures.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: VNMG 16 04 04-QM 4415\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: VNMG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond (35 degree)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid 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: 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\/8 inches (0.3750 inches)\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\u003eInsert Thickness\u003c\/strong\u003e: 3\/16 inches (0.1875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1500 inches (3.81 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\u003eInsert Hand\u003c\/strong\u003e: Neutral\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 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 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\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: 7860549\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51749486526770,"sku":"7860549","price":495.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a9030520f2e7fba6250c92a6a876aa7d_3c376120-7490-4674-a88a-ab741f4f95fb.jpg?v=1788906717","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7860549-turning-insert-vnmg331-qm-4415","provider":"Voomi Supply","version":"1.0","type":"link"}