{"product_id":"starrett-54461-o1-tool-steel-flat-stock-5-8-x-5-8-x-36-in","title":"Starrett 54461 O1 Tool Steel Flat Stock 5\/8 X 5\/8 X 36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54461 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die making, punch and fixture fabrication, and general precision machining applications. Manufactured to AISI Type O1 specifications, this flat stock measures 5\/8 inches thick by 5\/8 inches wide by 36 inches long and weighs 3.98 pounds. Thickness tolerance is held to plus or minus 0.001 inches, making it suitable for applications where dimensional consistency is critical before and after heat treatment. Machinists, tool and die makers, and metalworking shops typically work with this material at the bench or on manual and CNC machine tools prior to oil-quench hardening.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited to low-distortion oil-hardening applications in tool and die shops, maintenance machining environments, and prototype fabrication settings. The 36-inch length provides a practical stock size for cutting multiple blanks from a single bar. O1 tool steel is a widely used grade for punches, dies, gauges, and small cutting tools where good hardness and moderate toughness are required. This part ships as a single bar with a minimum order quantity of one piece.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for good hardness after quench\u003c\/li\u003e\n\u003cli\u003eThickness held to plus or minus 0.001 inches for consistent pre-hardened dimensions\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.000 to minus 0.005 inches for close-fit stock applications\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.015 inches, minus 0 inches\u003c\/li\u003e\n\u003cli\u003eEdge squareness held to 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003e36-inch bar length suitable for cutting multiple blanks\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard O1 oil-hardening flat tool steel bar for general toolmaking and machining applications requiring AISI Type O1 material specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO1 tool steel flat stock is worked by qualified machinists or tool and die makers using standard metal-cutting equipment. All machining, grinding, and fitting operations should be completed before oil-quench hardening, as the steel will reach high hardness and become difficult to machine afterward. Follow applicable shop safety procedures when cutting, grinding, or heat-treating tool steel, including appropriate PPE for hot quench operations. Consult AISI O1 heat-treatment specifications for proper austenitizing and quench procedures.\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: 5\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 5\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 36 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 0.015 inches, minus 0 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: 3.98 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 54461\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51544659558706,"sku":"54461","price":264.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_e956239f-a813-4f0b-a22f-cc61bf8052e0.jpg?v=1785932825","url":"https:\/\/voomisupply.com\/products\/starrett-54461-o1-tool-steel-flat-stock-5-8-x-5-8-x-36-in","provider":"Voomi Supply","version":"1.0","type":"link"}