{"product_id":"sandvik-coromant-8019633-turning-insert-cnmg-12-04-12-mr-4425","title":"Sandvik Coromant 8019633 Turning Insert Cnmg 12 04 12-MR 4425","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 8019633 is a CNMG-style indexable turning insert designed for precision metal cutting on CNC lathes and turning centers. It carries the ISO designation CNMG 12 04 12-MR 4425 and features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN over a solid carbide substrate. The MR chip breaker geometry is optimized for medium roughing operations. With a 0.5000-inch inscribed circle and a 0.0469-inch corner radius, this insert delivers controlled chip formation and consistent tool life in steel turning applications. It is installed by machinists and CNC tooling technicians in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis insert is engineered primarily for cutting steel, classified under ISO P workpiece material, making it well suited for general-purpose and medium-duty external turning, facing, and profiling passes. The neutral hand orientation allows use in standard right-hand toolholders configured for CNMG inserts. The 4425 grade provides a balance of wear resistance and toughness appropriate for interrupted and continuous cuts in carbon and alloy steels. It fits CNMG-MR series toolholders and is a direct replacement wherever the CNMG 12 04 12-MR 4425 designation is specified.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD multilayer coating: TiCN base layer, Al2O3 thermal barrier, TiN outer layer for wear indication\u003c\/li\u003e\n\u003cli\u003eMR chip breaker geometry suited for medium roughing passes in steel\u003c\/li\u003e\n\u003cli\u003e0.0469-inch corner radius balances edge strength and surface finish\u003c\/li\u003e\n\u003cli\u003eNeutral hand insert compatible with standard CNMG clamp and screw-lock toolholders\u003c\/li\u003e\n\u003cli\u003eISO P primary classification targets carbon steel and alloy steel workpieces\u003c\/li\u003e\n\u003cli\u003eSolid carbide substrate provides dimensional stability at elevated cutting temperatures\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement for any toolholder accepting CNMG 12 04 12 inserts with clamp or screw holding method. Compatible with CNMG-MR series toolholders per ISO and ANSI insert seating standards. Primary workpiece material is steel (ISO P); secondary application covers ISO K materials per manufacturer classification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCNMG turning inserts are seated and secured by a licensed machinist or CNC tooling technician. Before indexing or replacing an insert, power down the spindle and confirm the machine is in a locked-out, zero-energy state per OSHA lockout\/tagout procedures. Use the correct torque wrench and manufacturer-specified seating screw to avoid cracking the carbide or distorting the insert pocket. Do not exceed the toolholder's recommended depth-of-cut or feed-rate envelope for this insert geometry.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: CNMG 12 04 12-MR 4425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: CNMG\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape Code\u003c\/strong\u003e: C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 4425\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\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: MR\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: 0.5000 inches (1\/2 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0469 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\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\u003eInsert Holding Method\u003c\/strong\u003e: Clamp \/ 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\u003eSeries\u003c\/strong\u003e: CNMG-MR (ISO P)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.74 inches L x 1.54 inches W x 0.44 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.23 pounds\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: 8019633\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51733071724850,"sku":"8019633","price":276.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1ca2d523295033b7f6d267336371ad3e_e953f6b0-476e-4bfa-b984-1133cf2c75f0.jpg?v=1788751111","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-8019633-turning-insert-cnmg-12-04-12-mr-4425","provider":"Voomi Supply","version":"1.0","type":"link"}