{"product_id":"cleveland-c44645-m42-cobalt-tool-bit-blank-4-inch","title":"Cleveland C44645 M42 Cobalt Tool Bit Blank 4 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C44645 is a rectangle ground tool bit blank machined from M42 cobalt high-speed steel. It measures 1\/2 inch wide, 3\/4 inch high, and 4 inches in overall length. M42 cobalt is an 8-percent cobalt high-speed steel alloy known for its ability to hold a cutting edge under high heat and interrupted-cut conditions. The ground finish ensures dimensional accuracy out of the box, reducing the amount of material a toolmaker or machinist needs to remove when shaping and honing a custom cutting profile. This blank is intended to be ground to the desired tool geometry by the end user.\u003c\/p\u003e\u003cp\u003eTool bit blanks like the C44645 are used in toolrooms, job shops, and maintenance departments where custom single-point lathe tools, boring tools, or form tools are fabricated in-house. The rectangular cross-section suits standard tool holders and lathe tool posts. M42 cobalt blanks are a common choice when cutting harder ferrous materials, stainless steels, or high-temperature alloys where standard M2 high-speed steel loses edge retention at elevated temperatures.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt (8% Co) high-speed steel for superior hot hardness and wear resistance\u003c\/li\u003e\n\u003cli\u003eRectangle ground profile for close dimensional tolerances\u003c\/li\u003e\n\u003cli\u003e1\/2 inch wide x 3\/4 inch high cross-section fits standard lathe tool holders\u003c\/li\u003e\n\u003cli\u003e4-inch overall length provides material for multiple grinds and resharpening cycles\u003c\/li\u003e\n\u003cli\u003eGround surface reduces initial stock removal when forming a custom cutting edge\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose tool bit blank for use in standard lathe and boring tool holders that accept rectangular shank tooling with a 1\/2 inch x 3\/4 inch cross-section.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eTool bit blanks require grinding to the intended cutting geometry before use. Machinists and toolmakers should use a suitable bench or surface grinder with a wheel rated for high-speed steel. Appropriate personal protective equipment, including face shield and grinding gloves, is required during shaping operations. Follow your shop's standard tool-grinding procedures and ensure the blank is fully supported in the grinding fixture to maintain consistent rake and clearance angles.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1\/2 inch (12.70 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeight\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4 inches (101.60 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: M42\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Shape\u003c\/strong\u003e: Rectangle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGround or Unground\u003c\/strong\u003e: Ground\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: CLEVELAND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C44645\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51708978233650,"sku":"C44645","price":193.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e88ff75434b8f90e7721684a991ef45a.jpg?v=1788449508","url":"https:\/\/voomisupply.com\/products\/cleveland-c44645-m42-cobalt-tool-bit-blank-4-inch","provider":"Voomi Supply","version":"1.0","type":"link"}