{"product_id":"sandvik-coromant-6868256-turning-insert-dcmt32-51-km-3225","title":"Sandvik Coromant 6868256 Turning Insert DCMT32.51-KM 3225","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 6868256 is a solid carbide turning insert designed for external and internal turning operations on cast iron workpieces. Carrying the ANSI code DCMT32.51 and ISO code DCMT11T304, it belongs to the CoroTurn 107 series. The insert features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, which delivers high wear resistance across a range of cutting conditions from roughing through medium machining. The 55-degree diamond (rhombic) shape provides a sharp, positive cutting geometry with a 7-degree relief angle and a neutral hand orientation. The KM chip breaker geometry controls chip flow effectively during interrupted and continuous cast iron cutting.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for CNC turning centers and manual lathes running cast iron components in both roughing and medium machining applications. The CoroTurn 107 series is optimized for screw-on insert holding, making it compatible with corresponding SANDVIK COROMANT tool holders designed for DCMT geometry. The grade 3225 substrate is positioned within the cast iron (K) category, offering a balance of high wear resistance to high toughness. Typical users include CNC machinists and tool-and-die professionals working with gray iron, ductile iron, and similar K-category materials in production environments.\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 on cast iron\u003c\/li\u003e\n  \u003cli\u003e55-degree diamond insert shape with positive side clearance for reduced cutting forces\u003c\/li\u003e\n  \u003cli\u003eKM chip breaker geometry rated for roughing and medium machining operations\u003c\/li\u003e\n  \u003cli\u003eGrade 3225 carbide substrate: cast iron K-category, high wear resistance to high toughness range\u003c\/li\u003e\n  \u003cli\u003eScrew-on insert holding method for secure, repeatable seating in compatible tool holders\u003c\/li\u003e\n  \u003cli\u003eTwo cutting edges per insert, neutral hand orientation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with SANDVIK COROMANT CoroTurn 107 series tool holders accepting DCMT geometry inserts with screw-on clamping. Intended for cast iron (K-category) primary workpiece material applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist following machine tool lockout procedures before indexing or replacing inserts. Use the appropriate Torx or hex key specified for the CoroTurn 107 clamping screw — do not overtighten the screw by hand estimation. Ensure the insert pocket and seating surface are clean and free of chips before seating the insert. Verify correct insert orientation for neutral hand before resuming machine operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: DCMT32.51\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: DCMT11T304\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CoroTurn 107\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 3225\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN, Al2O3, TiN (CVD Process)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: D - Diamond (Rhombic) 55 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 55 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: KM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker Operation\u003c\/strong\u003e: Roughing, Medium Machining\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: 1\/64 inches (0.0156 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 5\/32 inches (0.1563 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 11.23 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1732 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Rounded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Positive\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: C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron (K)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWiper Edge\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 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: 6868256\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51747374399794,"sku":"6868256","price":240.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5d80362ad8d15f6bea47454901efa57a_20a70e28-493d-4877-b52d-551d10e2f1ca.jpg?v=1788879126","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-6868256-turning-insert-dcmt32-51-km-3225","provider":"Voomi Supply","version":"1.0","type":"link"}