{"product_id":"sandvik-coromant-6868540-turning-insert-tnmg432-km-3225","title":"Sandvik Coromant 6868540 Turning Insert TNMG432-KM 3225","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 6868540 is a TNMG432-KM 3225 grade turning insert designed for external and internal turning operations on CNC lathes and turning centers. It features a triangular 60-degree insert shape with a negative rake geometry and a CVD-applied multilayer coating of TiCN, Al2O3, and TiN for high wear resistance and thermal protection. The 0.5 inch inscribed circle and 0.0313 inch corner radius suit medium to roughing passes. With 6 usable cutting edges per insert, this carbide grade is built specifically for cast iron machining from high wear-resistance to high toughness applications.\u003c\/p\u003e\n\u003cp\u003eThe 6868540 belongs to the SANDVIK COROMANT T-Max P series, a platform engineered for productive turning across a wide range of metal-cutting conditions. It is best suited for roughing and medium machining of cast iron workpieces in production environments. The KM chip breaker geometry controls chip flow effectively during interrupted and continuous cuts at moderate to aggressive feed rates. This insert is held in place using either a clamp or pin holding method, depending on the toolholder configuration, and is compatible with standard TNMG-style toolholders used in production turning cells.\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 cast iron\u003c\/li\u003e\n  \u003cli\u003eKM chip breaker optimized for roughing and medium machining operations\u003c\/li\u003e\n  \u003cli\u003e6 cutting edges per insert for low cost-per-edge efficiency\u003c\/li\u003e\n  \u003cli\u003eNegative side clearance geometry provides stable edge support under high cutting loads\u003c\/li\u003e\n  \u003cli\u003eRounded cutting edge style reduces micro-chipping on cast iron entry and exit\u003c\/li\u003e\n  \u003cli\u003eMaximum depth of cut up to 21.20 mm supports aggressive material removal rates\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in TNMG-style toolholders accepting a 432 ANSI size code insert (ISO size code 220408). Compatible with clamp-style and pin-lock toolholder systems. Intended for use within the SANDVIK COROMANT T-Max P turning system.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified CNC machinists or toolroom technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torque wrench or clamping screw driver as specified by the toolholder manufacturer when seating the insert — do not overtighten. Inspect the insert pocket and seating surface for chips or debris before inserting to ensure proper contact and prevent edge damage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: TNMG432\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: TNMG 22 04 08-KM 3225\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Triangle (60 degree included angle)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 3225\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 Material\u003c\/strong\u003e: Carbide\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Cast Iron (ISO K)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Negative\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: 6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5000 inches (12.70 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0313 inches (0.79 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (4.76 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2030 inches (5.16 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 21.20 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp, Pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T-Max P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: 6868540\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51734954934578,"sku":"6868540","price":314.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5235a0186778a9b396ce2f1387d91f98.jpg?v=1788768516","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-6868540-turning-insert-tnmg432-km-3225","provider":"Voomi Supply","version":"1.0","type":"link"}