{"product_id":"sandvik-coromant-7860810-turning-insert-ccmt21-52-pm-4425","title":"Sandvik Coromant 7860810 Turning Insert CCMT21.52-PM 4425","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 7860810 is a solid carbide turning insert in the CoroTurn 107 series, designed for external and internal turning operations on CNC lathes and turning centers. Designated by ANSI code CCMT21.52 and ISO code CCMT 06 02 08, this insert features an 80-degree diamond (rhombic) shape with a positive side clearance and a neutral hand orientation. It carries a CVD-applied multilayer coating of TiCN, Al2O3, and TiN under manufacturer grade 4425, optimized for high wear resistance on steel with moderate toughness for medium to roughing chip loads. The 0.79 mm corner radius and 0.25-inch inscribed circle suit a wide range of finishing and semi-finish turning pass depths on ferrous workpieces.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for primary use on steel (ISO material group P) and secondary use on cast iron (ISO material group K) in both roughing and medium machining operations. The PM chip breaker geometry promotes effective chip control during interrupted and continuous cuts at moderate to aggressive feed rates. Typical applications include shaft turning, sleeve boring, and facing operations on CNC equipment in production and job-shop environments. Installation is performed by qualified machinists and CNC programmers. The two available cutting edges help manage tooling cost per part in high-volume production runs.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCVD multilayer coating: TiCN, Al2O3, and TiN for high wear resistance on steel\u003c\/li\u003e\n  \u003cli\u003e80-degree diamond insert shape (CCMT) with positive side clearance reduces cutting forces\u003c\/li\u003e\n  \u003cli\u003ePM chip breaker geometry rated for roughing and medium machining operations\u003c\/li\u003e\n  \u003cli\u003eGrade 4425 provides a balance of wear resistance and toughness on ISO P and K materials\u003c\/li\u003e\n  \u003cli\u003eTwo cutting edges per insert for extended tooling economy\u003c\/li\u003e\n  \u003cli\u003eNeutral hand orientation compatible with clamp and screw insert holding methods\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in CoroTurn 107 series toolholders that accept CCMT 06 02 insert seats with clamp or screw holding. Primary workpiece material is steel (ISO P); secondary workpiece material is cast iron (ISO K).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInsert seating and torque should follow the toolholder manufacturer specifications for CoroTurn 107 screw-clamp systems. Power down and lock out the machine spindle before changing inserts. Inspect the insert pocket and seating surface for chips or debris before seating the new insert. Use appropriate insert handling tools to avoid contact with the cutting edge.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: CCMT21.52\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: CCMT 06 02 08-PM 4425\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: C - Diamond (Rhombic) 80 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 4425\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Layers\u003c\/strong\u003e: TiCN, Al2O3, TiN\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: PM (Roughing and Medium Machining)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.25 inches (6.35 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.79 mm (0.0313 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.0938 inches (2.38 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1102 inches (2.80 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Positive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\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: CoroTurn 107\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.74 inches L x 1.58 inches W x 0.53 inches H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\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: 7860810\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51738088636722,"sku":"7860810","price":28.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/61f0724fbbc708d7aef204a7487267de_4dbd77b0-e150-4c52-b8b0-feddec0883d6.jpg?v=1788796094","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7860810-turning-insert-ccmt21-52-pm-4425","provider":"Voomi Supply","version":"1.0","type":"link"}