{"product_id":"sandvik-coromant-8021278-vnmg-16-04-08-mf-4415-turning-insert","title":"Sandvik Coromant 8021278 Vnmg 16 04 08-MF 4415 Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 8021278 is a VNMG-style carbide turning insert in grade 4415, designed for external turning operations on CNC lathes and turning centers. The insert features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, which provides wear resistance and thermal stability across a range of cutting conditions. With a 0.375 inch inscribed circle and a 0.0313 inch corner radius, this insert is suited for medium to finishing passes. The neutral hand orientation makes it compatible with both left- and right-hand toolholders. It is installed by machinists and CNC operators on production and job-shop turning equipment.\u003c\/p\u003e\n\u003cp\u003eThis insert is used in metal cutting applications on ISO P and ISO K workpiece materials, covering steel, stainless, and cast iron. The MF chip breaker geometry is optimized for light to medium finishing cuts, delivering consistent chip control at moderate feed rates. Typical install scenarios include finishing passes on shafts, flanges, bores, and turned profiles in both production and repair machining environments. The insert seats in VNMG-compatible clamp or screw-type toolholders.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCVD multilayer coating: TiCN, Al2O3, and TiN for extended tool life in steel and cast iron cutting\u003c\/li\u003e\n  \u003cli\u003e0.375 inch inscribed circle with 0.0313 inch corner radius for medium to finishing turning applications\u003c\/li\u003e\n  \u003cli\u003eMF chip breaker geometry designed for light to medium finishing cuts with reliable chip control\u003c\/li\u003e\n  \u003cli\u003eNeutral hand insert compatible with standard VNMG clamp and screw-type toolholders\u003c\/li\u003e\n  \u003cli\u003eCarbide substrate in grade 4415 for thermal hardness and edge stability\u003c\/li\u003e\n  \u003cli\u003eISO code VNMG 16 04 08-MF 4415 for direct cross-reference and toolholder matching\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in VNMG-compatible clamp-style and screw-type turning toolholders accepting a V-shape insert with N clearance and M tolerance. Suitable for ISO P and ISO K workpiece material classifications as indicated by the series designation VNMG-MF (ISO P).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC operator. Ensure the machine spindle is stopped and the turret is in a safe indexed position before seating or replacing the insert. Inspect the insert pocket and shim for damage or debris before installation, as a contaminated seat will affect edge height and cutting performance. Follow the toolholder manufacturer's torque procedure for clamp screws; do not overtighten, as carbide inserts are brittle under bending loads.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: VNMG 16 04 08-MF 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 Code\u003c\/strong\u003e: V\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 4415\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: 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\u003eInscribed Circle\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0313 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\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\u003eChip Breaker\u003c\/strong\u003e: MF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHolding Method\u003c\/strong\u003e: Clamp, Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material Code\u003c\/strong\u003e: K\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: 0.27 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 0.54 inches\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\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: 8021278\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51737005064498,"sku":"8021278","price":495.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3ed0d98e37ee232a4f7b6d864dc27f2d.jpg?v=1788783062","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-8021278-vnmg-16-04-08-mf-4415-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}