{"product_id":"starrett-54192-o1-tool-steel-flat-stock-0-75x2-5x18-in","title":"Starrett 54192 O1 Tool Steel Flat Stock 0.75x2.5x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54192 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die making, jig and fixture fabrication, and precision machining applications. Manufactured to AISI Type O1 specifications, this flat stock measures 0.75 inches thick, 2.5 inches wide, and 18 inches long, weighing 9.56 pounds. The O1 grade offers good machinability in the annealed state and responds well to oil-quench hardening, making it a reliable choice for cutting tools, punches, and wear components that require a hard, stable working surface after heat treatment.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for machine shops, tool and die operations, and maintenance departments that need a precision-ground bar ready for layout and machining. The 18-inch length provides workable stock for a variety of tool blanks and small die components. Machinists and tool makers working in both production and job-shop environments use O1 flat stock as a starting point for custom tooling that will be hardened and finished to final dimensions.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for predictable, controlled heat treatment response\u003c\/li\u003e\n\u003cli\u003eThickness of 0.75 inches with a tolerance of plus or minus 0.001 inches for consistent stock removal planning\u003c\/li\u003e\n\u003cli\u003eWidth of 2.5 inches with a tolerance of 0.0000 to minus 0.005 inches\u003c\/li\u003e\n\u003cli\u003eLength of 18 inches with a plus 0.250 inch length tolerance\u003c\/li\u003e\n\u003cli\u003eEdge squareness held to 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003ePrecision flat stock format minimizes setup time for milling, grinding, and EDM operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose O1 oil-hardening tool steel flat bar suitable for toolmaking, die making, and precision machining applications requiring AISI Type O1 material.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO1 tool steel flat stock is worked by qualified machinists and tool makers using conventional milling, grinding, and drilling equipment. Before hardening, ensure the part is machined to near-final dimensions, as distortion and slight dimensional change occur during oil quench. Heat treatment should be performed by personnel familiar with AISI O1 hardening and tempering procedures; improper quenching can cause cracking. Allow stock to reach room temperature before scribing layout lines or beginning machining.\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: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 2.5 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 minus 0.005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: plus 0.250 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquareness\u003c\/strong\u003e: All edges 0.003 inches per inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 9.56 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: 54192\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51542141665586,"sku":"54192","price":374.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_49f69ca0-8fef-4d41-aeac-77de1063f4d8.jpg?v=1785893422","url":"https:\/\/voomisupply.com\/products\/starrett-54192-o1-tool-steel-flat-stock-0-75x2-5x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}