{"product_id":"starrett-57014-o1-oil-hardening-flat-stock-1-2x1-2x18in","title":"Starrett 57014 O1 Oil-hardening Flat Stock 1\/2x1\/2x18in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 57014 is an O1 oil-hardening flat stock bar made from AISI Type O1 tool steel. It measures 0.5 inches thick, 0.5 inches wide, and 18 inches long, weighing 1.28 pounds. O1 tool steel offers reliable edge-holding ability and dimensional stability after heat treatment, making it a standard choice for toolmakers, machinists, and die makers who need consistent stock for punches, dies, gauges, and cutting tools. The thickness and width tolerances run +0.010 to +0.015 inches, the length tolerance is +0.250 inches, and the squareness is held to 0.003 inches per inch on all edges.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for machine shops, tool-and-die operations, and maintenance shops that require annealed O1 stock ready for layout, machining, and oil-quench hardening. It is commonly cut to length, milled, ground, and heat-treated on-site to produce custom tooling components. The 18-inch bar length provides a practical starting point for multiple parts from a single piece. Professional machinists and tool grinders working in both production and job-shop environments use this material regularly.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for predictable hardening response in an oil quench\u003c\/li\u003e\n\u003cli\u003eThickness: 0.5 inches with +0.010 to +0.015 inch tolerance\u003c\/li\u003e\n\u003cli\u003eWidth: 0.5 inches with +0.010 to +0.015 inch tolerance\u003c\/li\u003e\n\u003cli\u003eLength: 18 inches with +0.250 inch tolerance\u003c\/li\u003e\n\u003cli\u003eSquareness held to 0.003 inches per inch on all edges for reliable layout and grinding setups\u003c\/li\u003e\n\u003cli\u003eShips in annealed condition, ready for machining prior to heat treatment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard annealed O1 oil-hardening flat stock bar suitable for general toolmaking, die making, and gauge fabrication applications where AISI Type O1 tool steel is specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachining and heat treatment of O1 tool steel should be performed by qualified machinists or tool-and-die makers familiar with proper hardening and tempering procedures. Always secure the workpiece with appropriate fixturing before machining. Follow established heat-treatment practices for O1 tool steel, including proper preheat, austenitizing temperature, and immediate oil quenching to avoid cracking. Wear appropriate PPE when handling hot tooling or performing grinding operations.\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 Type O1 Oil Hardening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.5 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: +0.250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquareness\u003c\/strong\u003e: 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.28 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: STARRETT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 57014\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51540153663794,"sku":"57014","price":137.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_93a294b9-27a9-4457-ac9b-4be353feb673.jpg?v=1785847281","url":"https:\/\/voomisupply.com\/products\/starrett-57014-o1-oil-hardening-flat-stock-1-2x1-2x18in","provider":"Voomi Supply","version":"1.0","type":"link"}