{"product_id":"starrett-54088-o1-tool-steel-flat-stock-0-25x12x18-in","title":"Starrett 54088 O1 Tool Steel Flat Stock 0.25x12x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54088 is an O1 oil-hardening tool steel flat stock blank used in toolmaking, die making, and precision machining applications. Manufactured to AISI Type O1 specification, this flat stock measures 0.25 inches thick, 12 inches wide, and 18 inches long, and weighs approximately 15.3 pounds. Thickness tolerance is held to plus or minus 0.001 inches, giving machinists and toolmakers a consistent starting dimension before hardening. O1 tool steel is a general-purpose oil-hardening grade valued for its machinability in the annealed state and its ability to achieve high hardness after heat treatment.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for fabricating punches, dies, gauges, cutting tools, and fixtures in job shops, tool rooms, and manufacturing facilities. The 12-inch width and 18-inch length provide enough material for medium to large tooling blanks, and the pre-toleranced thickness reduces setup time at the surface grinder. Machinists, tool and die makers, and precision fabricators working in both production and prototype environments will find this stock ready to machine and finish grind prior to heat treatment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel — machines cleanly in the annealed state\u003c\/li\u003e\n\u003cli\u003eThickness held to plus or minus 0.001 inches for consistent starting dimensions\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.0000 to 0.0150 inches (negative side only)\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.250 inches, minus 0 inches\u003c\/li\u003e\n\u003cli\u003eEdge squareness held to 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003eSingle-piece packaging — no minimum order beyond one piece\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard O1 oil-hardening flat stock blank for use in tool and die, gauge, fixture, and general precision toolmaking applications requiring AISI Type O1 material specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO1 tool steel flat stock is worked by qualified machinists and tool and die makers using conventional milling, grinding, and EDM equipment. Material should be stress relieved and fully annealed before precision machining where dimensional stability is critical. Heat treatment — including hardening and tempering — should be performed by personnel familiar with AISI O1 procedures; improper quench rates or tempering temperatures will affect final hardness and performance. Always use appropriate personal protective equipment when cutting, grinding, or heat treating tool steel.\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: 12 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: 0.0000 to 0.0150 inches (under nominal)\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\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: 15.3 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 54088\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51541162721586,"sku":"54088","price":728.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_ebce3393-f26a-49a6-a63b-50d34403bc24.jpg?v=1785869264","url":"https:\/\/voomisupply.com\/products\/starrett-54088-o1-tool-steel-flat-stock-0-25x12x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}