{"product_id":"starrett-57215-a2-tool-steel-flat-stock-3-4x1-1-2x18-in","title":"Starrett 57215 A2 Tool Steel Flat Stock 3\/4x1-1\/2x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 57215 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, die makers, and machinist trades requiring a reliable pre-cut blank for fabricating punches, dies, gauges, and similar precision tooling components. It measures 0.75 inches thick by 1.5 inches wide by 18 inches long and weighs 5.74 pounds. A2 tool steel offers good dimensional stability during heat treatment and moderate wear resistance, making it a common choice when distortion control during hardening is a priority. Thickness, width, and squareness tolerances are held to +0.010 to 0.015 inches, with a length tolerance of +0.25 inches, providing consistent oversize stock for finish grinding to final dimension.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for tool and die shops, mold shops, and maintenance machining operations in industrial and manufacturing environments. The 18-inch length provides a workable blank for a single tooling component or can be sectioned into multiple shorter pieces. A2 material is commonly selected for applications requiring better toughness than D2 and lower distortion than oil-hardening grades, particularly in cold-work tooling. Licensed machinists, tool and die makers, and industrial maintenance technicians are the typical end users for this product.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eA2 air-hardening tool steel with low distortion characteristics during heat treatment\u003c\/li\u003e\n\u003cli\u003eThickness: 0.75 inches with +0.010 to 0.015 inches tolerance\u003c\/li\u003e\n\u003cli\u003eWidth: 1.5 inches with +0.010 to 0.015 inches tolerance\u003c\/li\u003e\n\u003cli\u003eLength: 18 inches with +0.25 inches tolerance\u003c\/li\u003e\n\u003cli\u003eSquareness tolerance held to +0.010 to 0.015 inches for consistent grinding stock\u003c\/li\u003e\n\u003cli\u003ePre-cut flat bar format minimizes raw material waste for single-component tooling blanks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose A2 tool steel flat stock blank suitable for cold-work tooling fabrication including punches, dies, and gauges where air-hardening grades are specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting and grinding of tool steel flat stock should be performed by qualified machinists using appropriate coolant to prevent surface tempering. Heat treatment of A2 tool steel should follow the material specification and be performed by a qualified heat treater familiar with air-hardening grades. Always wear appropriate PPE including eye protection and gloves when cutting or grinding. Follow applicable shop safety standards when handling and storing tool steel stock.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Tool Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Specification\u003c\/strong\u003e: AISI A2 Air-Hardening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Tolerance\u003c\/strong\u003e: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: +0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Tolerance\u003c\/strong\u003e: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 5.74 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31231200\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: STARRETT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 57215\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51538994430258,"sku":"57215","price":388.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dd4885fbdd426ecb0fa6c3cc24fba2db_85555e42-6ff1-420a-9d7f-35d95413e30b.jpg?v=1785832151","url":"https:\/\/voomisupply.com\/products\/starrett-57215-a2-tool-steel-flat-stock-3-4x1-1-2x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}