{"product_id":"ingersoll-cutting-tools-6212861-cnmm-turning-insert","title":"Ingersoll Cutting Tools 6212861 Cnmm Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe INGERSOLL CUTTING TOOLS 6212861 is a solid carbide CNMM-style turning insert designed for single-point turning operations on steel workpieces. It features a diamond-shaped insert body with an 80-degree included angle and a neutral hand orientation, making it suitable for both roughing and finishing passes where controlled chip formation is critical. The TT8125B grade substrate carries a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, providing wear resistance, thermal protection, and oxidation resistance across a broad range of cutting speeds. With a 0.063-inch corner radius and an RH chip breaker geometry, this insert delivers consistent performance in general steel turning applications. It is installed by machinists and CNC operators using a clamp-style insert holding method.\u003c\/p\u003e\u003cp\u003eThis insert is intended for use in steel turning applications, classified under primary workpiece material code P. The CNMM insert style with negative rake and a clearance code of N is well-matched for rigid setups on CNC lathes and turning centers where higher cutting forces are acceptable. The RH chip breaker geometry promotes reliable chip evacuation during continuous or interrupted cuts in carbon steel, alloy steel, and similar ferrous materials. With a maximum depth of cut of 0.354 inches and an inscribed circle of 0.750 inches, this insert handles medium to heavy material removal rates in production environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD multilayer coating: TiCN, Al2O3, TiN for extended tool life in steel turning\u003c\/li\u003e\n\u003cli\u003eSolid carbide substrate, TT8125B grade, engineered for steel (P-code) workpieces\u003c\/li\u003e\n\u003cli\u003eDiamond insert shape (80-degree included angle) with negative rake for strength and stability\u003c\/li\u003e\n\u003cli\u003e0.063-inch corner radius with RH chip breaker geometry for consistent chip control\u003c\/li\u003e\n\u003cli\u003eMaximum depth of cut of 0.354 inches supports medium to heavy roughing passes\u003c\/li\u003e\n\u003cli\u003eClamp-style holding method for secure seating in compatible toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned to fit clamp-style CNMM toolholders accepting a 644 insert size with a 0.750-inch inscribed circle and a 0.250-inch insert thickness. ANSI code CNMM644RHTT8125B and ISO code CNMM190616RH TT8125B can be used to cross-reference compatible toolholder systems.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis insert is installed by qualified machinists or CNC operators following standard turning insert replacement procedures. Power down and lock out the machine spindle before changing inserts. Verify that the toolholder seat and clamp are clean and free of chips before seating the new insert, as debris under the insert can cause premature edge failure or insert breakage. Cutting parameters including speed, feed, and depth of cut should be selected based on workpiece material, machine rigidity, and the insert manufacturer's recommended data for the TT8125B grade.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: CNMM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape Code\u003c\/strong\u003e: C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 80.0 degrees\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\u003eRake\u003c\/strong\u003e: Negative\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: RH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiper Edge\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.063 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.750 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.760 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.354 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 644\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: TT8125B\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\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material Code\u003c\/strong\u003e: P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Code\u003c\/strong\u003e: CNMM644RHTT8125B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: CNMM190616RH TT8125B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CNMM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 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: INGERSOLL CUTTING TOOLS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6212861\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"INGERSOLL CUTTING TOOLS","offers":[{"title":"Default Title","offer_id":52013570916658,"sku":"6212861","price":59.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2ec24694380cf34e1383dcbc7871f0fb.jpg?v=1790006276","url":"https:\/\/voomisupply.com\/products\/ingersoll-cutting-tools-6212861-cnmm-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}