{"product_id":"starrett-54310-o1-tool-steel-flat-stock-1-8x4-5x36-in","title":"Starrett 54310 O1 Tool Steel Flat Stock 1\/8x4.5x36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54310 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die-making, jig fabrication, and precision machining applications. Manufactured to AISI Type O1 specifications, this flat stock measures 0.125 inches thick, 4.5 inches wide, and 36 inches long, with a weight of 5.74 pounds. O1 tool steel offers excellent machinability in the annealed state and responds well to oil-quench hardening, making it a standard choice for punches, dies, gauges, and cutting tools. Thickness tolerance is held to plus or minus 0.001 inches, ensuring consistent stock removal and predictable heat-treat results for precision toolroom work.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for toolroom, maintenance, and production environments where O1 tool steel is specified. Typical applications include fabricating blanking dies, forming tools, precision fixtures, and wear plates in both jobshop and industrial settings. The 36-inch length provides a full bar suitable for cutting multiple blanks or machining a single long component. Machinists, tool-and-die makers, and metalworking professionals working to close tolerances will find this bar ready to machine in its annealed delivery condition.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for reliable heat-treat response\u003c\/li\u003e\n\u003cli\u003eThickness held to plus or minus 0.001 inches for precision stock\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.015 inches ensures full usable length\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.000 to minus 0.005 inches for consistent fit\u003c\/li\u003e\n\u003cli\u003eEdge squareness held to 0.003 inches per inch across all edges\u003c\/li\u003e\n\u003cli\u003eAnnealed condition allows straightforward machining before hardening\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 suitable for general toolroom and die-making applications requiring this material specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting and machining should be performed in the annealed condition using appropriate metalworking equipment. Oil-quench hardening and tempering must be carried out by qualified personnel following established heat-treat procedures for AISI O1 tool steel. Handle flat stock carefully to avoid surface damage that could affect dimensional accuracy after hardening. Consult applicable shop safety standards when operating saws, mills, or grinders on tool steel stock.\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: 0.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 4.5 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\u003eEdge Squareness\u003c\/strong\u003e: 0.003 inches per inch, all edges\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: 54310\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51540736246066,"sku":"54310","price":337.17,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_1ea4681c-f5a5-4547-b67b-58c2c2bc69ad.jpg?v=1785863309","url":"https:\/\/voomisupply.com\/products\/starrett-54310-o1-tool-steel-flat-stock-1-8x4-5x36-in","provider":"Voomi Supply","version":"1.0","type":"link"}