{"product_id":"starrett-54250-o1-tool-steel-flat-stock-2x2x18-in","title":"Starrett 54250 O1 Tool Steel Flat Stock 2x2x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54250 is an O1 oil-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who need a precision-ground blank ready for heat treatment. It measures 2 inches thick by 2 inches wide by 18 inches long and is manufactured to AISI Type O1 material specification. Thickness and squareness tolerances are held to plus or minus 0.001 inches, making this stock suitable for applications where dimensional control before hardening is critical. At 20.4 pounds per piece, this is a substantial bar suited for fabricating punches, dies, gauges, and similar tooling components.\u003c\/p\u003e\u003cp\u003eO1 tool steel flat stock is used across job shops, toolrooms, and maintenance-and-repair operations that produce or recondition tooling in-house. The 18-inch length provides enough material for multiple smaller tooling blanks or a single long form tool. Its oil-hardening characteristic means it responds well to controlled quench cycles, reducing the risk of distortion during heat treatment compared to water-hardening grades. This stock is appropriate for both production tooling environments and prototype work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel material specification\u003c\/li\u003e\n\u003cli\u003eThickness tolerance of plus or minus 0.001 inches for precision fitment before heat treat\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.000 to minus 0.005 inches\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.250 inches, minus 0\u003c\/li\u003e\n\u003cli\u003eEdge squareness held to 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003e20.4 pound bar weight suitable for substantial tooling blank applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose O1 oil-hardening tool steel flat stock blank for use in any toolroom or machining application requiring AISI O1 material in a 2 inch by 2 inch by 18 inch form factor.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachining and heat treatment of tool steel should be performed by qualified toolmakers or machinists familiar with O1 oil-hardening procedures. Always follow established shop safety practices when cutting, grinding, or heat-treating tool steel, including appropriate PPE and ventilation. Secure the bar properly in a vise or fixture before any cutting operation to prevent movement. Consult material data sheets for recommended heat treatment temperatures and quench media before processing.\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\u003eOverall Thickness\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 18 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness Tolerance\u003c\/strong\u003e: plus or minus 0.001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: 0.000 to minus 0.005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: plus 0.250 inches, minus 0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdge Squareness\u003c\/strong\u003e: 0.003 inches per inch, all edges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 20.4 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: 54250\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51544438440242,"sku":"54250","price":742.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_ab17dfa2-76b2-4429-8fbf-9f653eab0b95.jpg?v=1785926532","url":"https:\/\/voomisupply.com\/products\/starrett-54250-o1-tool-steel-flat-stock-2x2x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}