{"product_id":"starrett-54411-o1-tool-steel-flat-stock-3-8x1-1-2x36-in","title":"Starrett 54411 O1 Tool Steel Flat Stock 3\/8x1-1\/2x36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54411 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die work, jig fabrication, and precision machining applications. Manufactured to AISI Type O1 specifications, this flat stock measures 3\/8 inch thick, 1-1\/2 inches wide, and 36 inches long, and weighs 5.74 pounds. Thickness tolerance is held to plus or minus 0.001 inches, making it suitable for applications that demand close dimensional control before and after heat treating. Machinists, tool and die makers, and precision fabricators use O1 stock when a readily available oil-hardening grade is required for punches, dies, gauges, and similar tooling components.\u003c\/p\u003e\u003cp\u003eThis flat bar is suited for job shops, tool rooms, and production environments where O1 tool steel is specified for its moderate toughness, good machinability in the annealed state, and predictable oil-quench hardening response. The 36-inch length is a standard bar length for bench and bridgeport-style machining operations. Edge squareness is held to 0.003 inches per inch across all edges, supporting accurate layout and fixturing directly from stock without additional grinding in many applications.\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\u003c\/li\u003e\n\u003cli\u003eThickness held to plus or minus 0.001 inches for tight dimensional control\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.000 to minus 0.005 inches\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.015 inches\u003c\/li\u003e\n\u003cli\u003eEdge squareness of 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003eStandard 36-inch bar length ready for bench or machine operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard AISI Type O1 oil-hardening tool steel flat bar suitable for general toolmaking, die making, and precision fabrication applications requiring oil-quench hardenable steel stock.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting, grinding, and machining of tool steel flat stock should be performed with appropriate metalworking equipment and personal protective equipment. Heat treating O1 steel requires controlled furnace equipment and proper quenching procedures and should be carried out by qualified personnel familiar with tool steel processing. Consult the applicable material safety data sheet when grinding or cutting. All layout and machining work should be completed prior to hardening, as stock dimensions will change slightly during heat treatment.\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: 3\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1-1\/2 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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquareness\u003c\/strong\u003e: Edge: All 0.003 inches per inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 5.74 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: 54411\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51540578271538,"sku":"54411","price":279.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_f66f200a-171b-4df4-a031-cbd1d7fa9e1b.jpg?v=1785858965","url":"https:\/\/voomisupply.com\/products\/starrett-54411-o1-tool-steel-flat-stock-3-8x1-1-2x36-in","provider":"Voomi Supply","version":"1.0","type":"link"}