{"product_id":"starrett-54463-o1-tool-steel-flat-stock-5-8x1x36-in","title":"Starrett 54463 O1 Tool Steel Flat Stock 5\/8x1x36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe STARRETT 54463 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die making, jig and fixture fabrication, and precision machining applications. It measures 5\/8 inch thick, 1 inch wide, and 36 inches long, and weighs 6.37 pounds. Manufactured to AISI Type O1 oil-hardening material specification, this flat stock holds tight dimensional tolerances, including a thickness tolerance of plus or minus 0.001 inches and a length tolerance of plus 0.015 inches. It is a go-to raw material for shops and trade professionals who need a consistent, machinable tool steel bar ready for custom tooling work.\u003c\/p\u003e\n\u003cp\u003eThis flat stock is suited for machine shops, tool and die shops, and metalworking operations that require a reliable O1 tool steel blank. Typical applications include cutting tools, punches, dies, gauges, and similar precision components that will be machined to final dimensions and then heat treated. The 36-inch length provides adequate stock for multiple parts or a single long component. Each bar is supplied individually, with a minimum order quantity of one piece.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eAISI Type O1 oil-hardening tool steel — consistent machinability and predictable heat treat response\u003c\/li\u003e\n  \u003cli\u003eThickness tolerance of plus or minus 0.001 inches for precise stock allowance planning\u003c\/li\u003e\n  \u003cli\u003eWidth tolerance of 0.000 to minus 0.005 inches for controlled fit in tooling setups\u003c\/li\u003e\n  \u003cli\u003eLength tolerance of plus 0.015 inches — nominal 36 inches with slight overrun for clean facing\u003c\/li\u003e\n  \u003cli\u003eEdge squareness held to 0.003 inches per inch across all edges\u003c\/li\u003e\n  \u003cli\u003eReady-to-machine flat bar — no additional surface grinding required for most tooling blanks\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard O1 oil-hardening tool steel flat stock blank compatible with conventional machining, grinding, and heat treating processes used in tool and die, mold making, and general precision metalworking applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eCutting and machining of tool steel flat stock should be performed by qualified machinists using appropriate carbide or high-speed steel tooling. Secure the workpiece firmly in a milling vise or lathe chuck before machining to prevent movement. Heat treating to final hardness should follow established AISI O1 oil-quench procedures and is typically performed by a qualified heat treating shop or experienced toolmaker. Always wear appropriate PPE when cutting, grinding, or handling tool steel bar stock.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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: 5\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 36 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 6.37 pounds\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 0.015 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\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31231200\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 54463\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51542641574194,"sku":"54463","price":324.07,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_2800e4de-c069-40cb-8f65-2fde09896946.jpg?v=1785904077","url":"https:\/\/voomisupply.com\/products\/starrett-54463-o1-tool-steel-flat-stock-5-8x1x36-in","provider":"Voomi Supply","version":"1.0","type":"link"}