{"product_id":"starrett-54368-o1-tool-steel-flat-stock-1-4x2x36-in","title":"Starrett 54368 O1 Tool Steel Flat Stock 1\/4x2x36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54368 is an O1 oil-hardening tool steel flat stock bar measuring 0.25 inches thick, 2 inches wide, and 36 inches long. O1 is an AISI-grade, oil-quench tool steel widely used in toolmaking, die work, and precision machining applications where consistent hardness and tight dimensional tolerances are required. This flat stock ships in its annealed (soft) state, ready for machining and subsequent heat treating. Thickness and squareness tolerances are held to plus or minus 0.001 inches, making it suitable for applications that demand close-tolerance blank preparation before hardening. The bar weighs approximately 5.1 pounds.\u003c\/p\u003e\u003cp\u003eThis flat stock is used in tool and die shops, machine shops, and maintenance repair operations for fabricating punches, dies, gauges, jigs, fixtures, and cutting tools. It is a standard choice wherever a tough, wear-resistant tool steel is needed in flat bar form. The annealed condition allows straightforward machining with conventional tooling before the oil-hardening heat treat cycle.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for consistent hardenability\u003c\/li\u003e\n\u003cli\u003eThickness tolerance: plus or minus 0.001 inches for precise blank sizing\u003c\/li\u003e\n\u003cli\u003eWidth tolerance: 0.0000 to 0.005 inches undersize\u003c\/li\u003e\n\u003cli\u003eLength tolerance: plus 0.015 inches, minus 0 inches\u003c\/li\u003e\n\u003cli\u003eSquareness: edge all sides within 0.003 inches per inch\u003c\/li\u003e\n\u003cli\u003eAnnealed condition — machinable with standard tooling prior to heat treating\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard O1 oil-hardening tool steel flat bar suitable for general toolmaking, die making, and precision machining applications requiring AISI Type O1 material specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachining and shaping should be completed while the bar is in its annealed state before any heat treatment is performed. Oil-hardening tool steel requires a controlled heat treat and quench process typically performed by a qualified heat treat facility or experienced toolmaker following established metallurgical procedures. Secure workpieces properly during cutting and grinding operations and use appropriate personal protective equipment. Consult the material specification and applicable shop safety standards before processing.\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: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 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: 0.0000 to 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: Edge all sides 0.003 inches per inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 5.1 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: 54368\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51544327782706,"sku":"54368","price":253.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_fc22d029-cc30-4cfc-b7f9-8f6e0b8ec7d8.jpg?v=1785926180","url":"https:\/\/voomisupply.com\/products\/starrett-54368-o1-tool-steel-flat-stock-1-4x2x36-in","provider":"Voomi Supply","version":"1.0","type":"link"}