{"product_id":"starrett-54261-o1-tool-steel-flat-stock-1-16-x-1-1-2-x-36-in","title":"Starrett 54261 O1 Tool Steel Flat Stock 1\/16 X 1-1\/2 X 36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54261 is an O1 oil-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who need a precision-ground blank ready for layout, machining, and hardening. It measures 0.0625 inches thick, 1.5 inches wide, and 36 inches long. The material conforms to AISI Type O1 oil-hardening specification, a widely used cold-work tool steel known for its dimensional stability during heat treatment. Thickness tolerance is held to plus or minus 0.001 inches, making this bar suitable for applications where tight pre-hardened dimensions reduce downstream grinding time.\u003c\/p\u003e\u003cp\u003eO1 flat stock at this size is commonly used in the fabrication of punches, dies, gauges, jigs, fixtures, and cutting tools in both job-shop and production toolroom environments. The 36-inch length allows the bar to be cut to multiple shorter blanks from a single piece, reducing material waste. Machinists working in tool and die, mold making, and precision instrument manufacturing will find this stock appropriate for close-tolerance work before or after heat treatment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for predictable heat-treat response and good dimensional stability\u003c\/li\u003e\n\u003cli\u003eThickness tolerance of plus or minus 0.001 inches for precision pre-machined fitment\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.000 to minus 0.005 inches held across the 1.5-inch face\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.015 inches on the 36-inch bar\u003c\/li\u003e\n\u003cli\u003eEdge squareness held to 0.003 inches per inch across all edges\u003c\/li\u003e\n\u003cli\u003eSingle 36-inch bar allows multiple cut-to-length blanks from one 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 blank suitable for general toolroom fabrication wherever AISI Type O1 material specification is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO1 tool steel flat stock is machined and fitted by toolmakers and machinists using conventional milling, grinding, and sawing equipment. Heat treatment should be performed by a qualified heat treater following established AISI O1 austenitizing and oil-quench procedures. Always use appropriate cutting fluids when machining to maintain surface finish and dimensional accuracy. Wear appropriate PPE when cutting or grinding tool steel bar 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: 0.0625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.5 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 on all edges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.96 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: 54261\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51539573408050,"sku":"54261","price":118.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_67749d0c-eca7-4d32-b712-db06bc31640d.jpg?v=1785843313","url":"https:\/\/voomisupply.com\/products\/starrett-54261-o1-tool-steel-flat-stock-1-16-x-1-1-2-x-36-in","provider":"Voomi Supply","version":"1.0","type":"link"}