{"product_id":"starrett-54312-o1-tool-steel-flat-stock-1-8x6x36-in","title":"Starrett 54312 O1 Tool Steel Flat Stock 1\/8x6x36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54312 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 1\/8 inch thick, 6 inches wide, and 36 inches long, with a weight of 7.66 pounds per piece. Thickness tolerance is held to +\/- 0.001 inches, making it suitable for applications where dimensional consistency is critical before and after heat treatment. Machinists, toolmakers, and die makers rely on O1 steel for its predictable oil-quench hardening characteristics and good dimensional stability through the hardening process.\u003c\/p\u003e\u003cp\u003eThis flat stock is well-suited for fabricating punches, dies, gauges, knives, and other tooling components in job shop, production, and maintenance environments. The 6-inch width and 36-inch length provide substantial working stock for cutting multiple blanks or for large flat tooling components. Both small shops and larger manufacturing operations use O1 flat stock as a baseline material where moderate wear resistance and ease of machining in the annealed condition are required. It ships in the annealed (soft) condition and must be heat treated by the end user to achieve working hardness.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for predictable, controlled heat treatment\u003c\/li\u003e\n\u003cli\u003eThickness held to +\/- 0.001 inches for consistent stock removal and fit-up\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.000 to -0.005 inches ensures the bar does not exceed nominal width\u003c\/li\u003e\n\u003cli\u003eLength tolerance of +0.015 inches provides full-length usable material\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 machining, drilling, and grinding before hardening\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose O1 oil-hardening tool steel flat bar suitable for custom tooling, die making, gauging, and precision component fabrication where AISI Type O1 material specification is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists or toolmakers using appropriate cutting fluids and tooling rated for tool steel. Heat treatment to working hardness requires oil quenching and must be performed in accordance with established metallurgical procedures for AISI O1 steel. Always wear appropriate PPE when cutting or grinding tool steel. Follow applicable shop safety codes when operating machine tools or heat treatment equipment.\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: 1\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 6 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: +\/- 0.001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: 0.000 to -0.005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: +0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdge Squareness\u003c\/strong\u003e: 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 7.66 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: 54312\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51542123282738,"sku":"54312","price":434.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_2766b04b-4785-4463-896c-a31e4b5589f1.jpg?v=1785892758","url":"https:\/\/voomisupply.com\/products\/starrett-54312-o1-tool-steel-flat-stock-1-8x6x36-in","provider":"Voomi Supply","version":"1.0","type":"link"}