{"product_id":"starrett-58892-o1-tool-steel-flat-stock-1-8x3-8x36-in","title":"Starrett 58892 O1 Tool Steel Flat Stock 1\/8x3\/8x36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 58892 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die making, jig construction, and precision machining applications. Manufactured to AISI Type O1 specification, this flat stock measures 0.125 inches thick, 0.375 inches wide, and 36 inches long, weighing 0.48 pounds per piece. The O1 grade offers good machinability in the annealed state and responds well to oil quench hardening, making it a dependable choice for fabricating punches, dies, gauges, and cutting tools. Thickness tolerance is held to plus or minus 0.001 inches, supporting tight fitment requirements in precision tooling work.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for use in machine shops, tool and die shops, and maintenance facilities where stock material must be cut, ground, or machined to finished dimensions. It is a standard raw material form for fabricating custom tooling components where oil-hardening steel properties are required. The 36-inch length allows multiple blanks to be cut from a single piece, reducing scrap and setup time. Machinists, tool and die makers, and industrial maintenance technicians are the primary users of this material.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for reliable heat-treat response\u003c\/li\u003e\n\u003cli\u003eThickness of 0.125 inches held to plus or minus 0.001 inches tolerance\u003c\/li\u003e\n\u003cli\u003eWidth of 0.375 inches with tolerance of 0.0000 to negative 0.005 inches\u003c\/li\u003e\n\u003cli\u003eLength of 36 inches with a positive length tolerance of plus 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 as a single piece with a minimum order quantity of one\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard raw stock form for use in any application requiring AISI Type O1 oil-hardening tool steel flat bar in 0.125 inches by 0.375 inches cross-section.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists or tool and die makers using appropriate metalworking equipment. Material should be handled in the annealed condition prior to heat treatment. Oil hardening requires controlled quench procedures in accordance with the material specification — do not substitute water or air quench without verifying compatibility with O1 grade requirements. Always wear appropriate PPE when cutting or grinding 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: 0.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.375 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 negative 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, all edges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.48 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: 58892\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51541280620850,"sku":"58892","price":80.26,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_fdf93065-fe26-4080-9f74-2d4e94b56eb7.jpg?v=1785871314","url":"https:\/\/voomisupply.com\/products\/starrett-58892-o1-tool-steel-flat-stock-1-8x3-8x36-in","provider":"Voomi Supply","version":"1.0","type":"link"}