{"product_id":"starrett-54504-o1-tool-steel-flat-stock-1x2-5x36-in","title":"Starrett 54504 O1 Tool Steel Flat Stock 1x2.5x36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54504 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. Manufactured to AISI Type O1 specification, this flat stock measures 1 inch thick, 2.5 inches wide, and 36 inches long, with a weight of 25.5 pounds. O1 tool steel is a general-purpose oil-hardening grade known for its dimensional stability during heat treatment, good machinability in the annealed state, and ability to hold a fine edge after hardening. This stock is supplied in a ready-to-machine form and is used by tool and die makers, machinists, and metalworking professionals who require consistent dimensional tolerances before and after hardening.\u003c\/p\u003e\u003cp\u003eO1 flat stock in this size is well suited for fabricating punches, dies, jigs, fixtures, gauges, and cutting tools in both job-shop and production environments. The 36-inch length provides adequate stock for multiple parts to be cut from a single bar, reducing setup time. Typical users include tool and die shops, maintenance departments, and precision machine shops working with ferrous tooling. The oil-hardening characteristic makes it suitable for applications where water-hardening steels present distortion risk.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for predictable heat treat response and minimal distortion\u003c\/li\u003e\n\u003cli\u003eThickness tolerance of plus or minus 0.001 inches for tight dimensional control before machining\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.0000 to 0.0050 inches for consistent stock width\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.015 inches, minus 0 inches ensuring full usable length\u003c\/li\u003e\n\u003cli\u003eSquareness: edge all 0.003 per inch for reliable reference surfaces\u003c\/li\u003e\n\u003cli\u003e25.5-pound bar weight suitable for bench or vise work in standard shop environments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard AISI O1 oil-hardening tool steel flat bar compatible with conventional machining, grinding, and oil-quench heat treatment processes used in tool and die fabrication.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting and machining of tool steel flat stock should be performed by qualified machinists using appropriate tooling rated for tool steel hardness. Secure the bar firmly in a vise or fixture before sawing or milling to prevent movement. Heat treatment, including hardening and tempering, should follow established metallurgical procedures for AISI O1 steel and be performed in a controlled environment. Always wear appropriate PPE including eye protection and gloves when cutting or grinding tool steel.\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: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\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: 0.0000 to 0.0050 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: Edge all 0.003 per inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 25.5 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: 54504\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51539015336242,"sku":"54504","price":824.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_42979819-e3d8-4558-bf83-bf76b78d812f.jpg?v=1785832909","url":"https:\/\/voomisupply.com\/products\/starrett-54504-o1-tool-steel-flat-stock-1x2-5x36-in","provider":"Voomi Supply","version":"1.0","type":"link"}