{"product_id":"sandvik-coromant-7859223-turning-insert-cnmg431-pm-4415","title":"Sandvik Coromant 7859223 Turning Insert CNMG431-PM 4415","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 7859223 is a CNMG-style indexable turning insert in the T-Max P series, designed for external and general turning operations on CNC lathes and turning centers. This insert is manufactured from solid carbide with a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, providing wear resistance and thermal stability during high-speed cutting passes. It features an 80-degree diamond shape, a 0.5-inch inscribed circle, a 0.40 mm corner radius, and a PM chip breaker geometry. The insert carries a neutral hand orientation and is suited for productive roughing and semi-finishing passes. Installation is handled by licensed machinists and CNC operators in precision metalworking environments.\u003c\/p\u003e\u003cp\u003eThis insert is optimized for primary use on steel workpieces and performs well on cast iron as a secondary material. The PM chip breaker geometry is engineered to manage chip flow across a broad range of cutting depths and feed rates typical in steel turning applications. With 4 available cutting edges per insert and compatibility with standard CNMG-style toolholders using clamp or screw holding methods, it is a practical choice for production turning cells requiring consistent performance and insert indexability. The ISO code designation is CNMG 12 04 04-PM 4415, and the manufacturers catalog number is CNMG 431-PM 4415.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD multilayer coating: TiCN, Al2O3, and TiN for heat and abrasion resistance in steel cutting\u003c\/li\u003e\n\u003cli\u003e80-degree diamond insert shape (Shape Code C) for rigid, versatile turning geometry\u003c\/li\u003e\n\u003cli\u003ePM chip breaker geometry suited for general steel turning at varied feeds and depths\u003c\/li\u003e\n\u003cli\u003e4 indexable cutting edges per insert for extended tool life value\u003c\/li\u003e\n\u003cli\u003eNeutral hand orientation compatible with standard CNMG toolholder configurations\u003c\/li\u003e\n\u003cli\u003eClamp and screw insert holding method supported\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in standard CNMG-style toolholders with clamp or screw holding. Primary workpiece material is steel (ISO P); secondary workpiece material is cast iron (ISO K). ISO insert code CNMG 12 04 04-PM 4415.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\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 and manufacturer-specified clamping hardware when seating the insert to avoid micro-fracture at the cutting edge. Inspect the insert pocket for chips or debris before seating a new edge.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: CNMG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond (80 degrees)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 4415\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T-Max P\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\u003eChip Breaker\u003c\/strong\u003e: PM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches (12.70 mm)\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: 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\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\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 Material\u003c\/strong\u003e: Solid Carbide\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\u003eInsert Holding Method\u003c\/strong\u003e: Clamp, Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.74 inches L x 1.54 inches W x 0.43 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: CNMG 12 04 04-PM 4415\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: 7859223\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51734775464242,"sku":"7859223","price":277.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/68eaf8b9a0fd5b3eca0143e7e97e83de_ea3fc079-7968-4f84-97d4-943e6e9766c6.jpg?v=1788766901","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7859223-turning-insert-cnmg431-pm-4415","provider":"Voomi Supply","version":"1.0","type":"link"}