{"product_id":"starrett-54259-o1-tool-steel-flat-stock-1-16x1x36-in","title":"Starrett 54259 O1 Tool Steel Flat Stock 1\/16x1x36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54259 is an O1 oil-hardening tool steel flat stock bar designed for toolmakers, machinists, and die makers who need a reliable, pre-cut blank ready for hardening. Manufactured to AISI Type O1 specification, this flat stock measures 1\/16 inch thick, 1 inch wide, and 36 inches long, with tight dimensional tolerances held across all four faces. The O1 alloy offers good machinability in the annealed state and responds well to oil-quench hardening, making it a standard choice for punches, dies, gauges, and cutting tools in both job-shop and production environments.\u003c\/p\u003e\u003cp\u003eThis flat stock bar suits applications in tool and die shops, maintenance and repair operations, and precision fabrication settings. It ships in the soft-annealed condition, allowing conventional machining, grinding, and drilling before heat treatment. The 36-inch length provides a standard working blank that can be cut to final length on a cold saw or abrasive cutoff. Thickness and squareness tolerances are held to precision levels appropriate for gauge and tooling blanks.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for consistent heat-treat response\u003c\/li\u003e\n\u003cli\u003eThickness: 1\/16 inch with tolerance of +\/- 0.001 inches\u003c\/li\u003e\n\u003cli\u003eWidth: 1 inch with tolerance of -0.000 to -0.005 inches\u003c\/li\u003e\n\u003cli\u003eLength: 36 inches with tolerance of +0.015 inches\u003c\/li\u003e\n\u003cli\u003eEdge squareness held to 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003eShips in annealed condition — machines and grinds before hardening\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 punch, die, gauge, and general tooling fabrication where AISI Type O1 material is specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting and machining should be performed in the annealed state prior to heat treatment. Oil-quench hardening of O1 tool steel should be performed by a qualified heat treater or toolroom professional following established AISI O1 processing guidelines. Use appropriate personal protective equipment when cutting, grinding, or handling tool steel stock. Secure the bar firmly in a vise or fixture before any machining operation to prevent movement and maintain dimensional accuracy.\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\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1 inch\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, all edges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.64 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 54259\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51538808865074,"sku":"54259","price":91.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_9e7f86b0-caf5-4760-88e4-c618c2128103.jpg?v=1785827119","url":"https:\/\/voomisupply.com\/products\/starrett-54259-o1-tool-steel-flat-stock-1-16x1x36-in","provider":"Voomi Supply","version":"1.0","type":"link"}