{"product_id":"starrett-54015-o1-tool-steel-flat-stock-1-8x8x18-in","title":"Starrett 54015 O1 Tool Steel Flat Stock 1\/8x8x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54015 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 specification, this flat stock measures 0.125 inches thick, 8 inches wide, and 18 inches long, with a finished weight of 5.1 pounds. Thickness tolerance is held to plus or minus 0.001 inches, making it suitable for applications where dimensional consistency is critical before heat treatment. Machinists, tool and die makers, and fabrication shops work with this material to produce punches, dies, gauges, and similar hardened tooling components.\u003c\/p\u003e\u003cp\u003eO1 tool steel is a general-purpose oil-hardening grade valued for its machinability in the annealed state and its ability to hold a sharp edge after hardening. This flat stock is used in job shops, tool rooms, and manufacturing facilities handling low-to-medium production tooling. The 8-inch width and 18-inch length provide enough stock for multiple tooling blanks from a single piece. It is appropriate for applications that do not require the higher red-hardness of more alloyed tool steels such as D2 or A2.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for general-purpose tooling applications\u003c\/li\u003e\n\u003cli\u003eThickness held to plus or minus 0.001 inches for consistent pre-grind stock removal\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.000 to minus 0.005 inches\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.250 inches, minus 0 inches\u003c\/li\u003e\n\u003cli\u003eEdge squareness: all edges 0.003 inches per inch maximum deviation\u003c\/li\u003e\n\u003cli\u003eFinished weight of 5.1 pounds per piece\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard O1 oil-hardening tool steel flat stock suitable for tool room, die shop, and precision fabrication use where AISI Type O1 material specification is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO1 tool steel flat stock is worked by machinists and tool and die makers using conventional milling, grinding, and sawing equipment in the annealed condition. Heat treatment, including hardening and tempering, should be performed by qualified personnel following established metallurgical procedures for AISI O1 tool steel. Always allow stock to reach ambient temperature before precision measuring. Handle with care to avoid nicking finished edges, which can affect squareness tolerances.\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: 8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 18 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 0.250 inches, minus 0 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: 5.1 pounds\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: 54015\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51541149450546,"sku":"54015","price":352.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_1e590561-76cd-4876-a244-02de477ec62a.jpg?v=1785869016","url":"https:\/\/voomisupply.com\/products\/starrett-54015-o1-tool-steel-flat-stock-1-8x8x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}