{"product_id":"sandvik-coromant-6427399-cutoff-insert-1-8-in-carbide","title":"Sandvik Coromant 6427399 Cutoff Insert 1\/8 in Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 6427399 is a solid carbide cutoff and grooving insert engineered for precision parting and grooving operations on CNC lathes and turning centers. It belongs to the CoroCut QD series and carries a 1\/8 inch (0.1250 inch) cutting width with a tight width tolerance of 0.001969 inches for consistent, repeatable cuts. The insert features a TiAlN coating applied via PVD process, which provides thermal resistance and extended tool life in demanding materials. The neutral hand orientation and clamp-style holding method make this insert compatible with standard QD-style toolholders used across a wide range of turning setups. It is installed by machinists and CNC tooling technicians in production and job-shop environments.\u003c\/p\u003e\u003cp\u003eThis insert is suited for grooving and parting applications in both production machining and maintenance environments. The CM chipbreaker geometry promotes controlled chip evacuation during grooving passes, reducing the risk of chip buildup in the cut zone. The 7-degree relief angle and 0.20 mm (0.0079 inch) corner radius make it appropriate for medium-duty cutoff work on ferrous and non-ferrous workpieces. It is commonly used in applications where tight groove width tolerances and clean parting faces are required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide substrate with PVD-applied TiAlN coating for heat and wear resistance\u003c\/li\u003e\n\u003cli\u003e1\/8 inch cutting width with 0.001969 inch width tolerance for precise groove sizing\u003c\/li\u003e\n\u003cli\u003eCM chipbreaker geometry for controlled chip flow during grooving and parting\u003c\/li\u003e\n\u003cli\u003eNeutral hand orientation fits a broad range of QD-style clamp toolholders\u003c\/li\u003e\n\u003cli\u003e7-degree relief angle with 0.20 mm corner radius reduces rubbing and edge stress\u003c\/li\u003e\n\u003cli\u003eCoroCut QD series insert style for compatibility with the corresponding QD toolholder system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with CoroCut QD series clamp-style toolholders accepting a size G insert seat. Suitable for grooving and parting operations on CNC lathes and turning centers. Confirm toolholder insert seat size G and QD insert style before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis insert is installed by qualified machinists or CNC tooling technicians. Power down and lock out the machine spindle before changing inserts. Use the correct clamp key or torx wrench specified by the toolholder manufacturer to seat the insert securely — do not overtighten or substitute hardware. Inspect the insert seat for chips or debris before seating a new insert to maintain positioning accuracy.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: QD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: G\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: 1105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Width\u003c\/strong\u003e: 1\/8 inch (0.1250 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: 0.001969 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: CM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7.00 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.20 mm (0.0079 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Radius\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Tool Application\u003c\/strong\u003e: Grooving, Parting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CoroCut QD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.74 inches L x 1.58 inches W x 0.53 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\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: 6427399\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51728188997938,"sku":"6427399","price":323.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/529fab69df68082938e49120f4913b6f.jpg?v=1788689220","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-6427399-cutoff-insert-1-8-in-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}