{"product_id":"starrett-54200-o1-tool-steel-flat-stock-0-75x10x18-in","title":"Starrett 54200 O1 Tool Steel Flat Stock 0.75x10x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54200 is an O1 oil-hardening tool steel flat stock blank used in toolmaking, die making, and precision machining applications. Manufactured to AISI Type O1 specifications, this flat stock measures 0.75 inches thick, 10 inches wide, and 18 inches long. Thickness tolerance is held to plus or minus 0.001 inches, and squareness is maintained to 0.003 inches per inch on all edges. At 38.25 pounds, this is a substantial blank suited for demanding shop and production environments. It is typically worked by machinists, tool and die makers, and industrial maintenance professionals who require tight dimensional control before hardening.\u003c\/p\u003e\u003cp\u003eO1 tool steel flat stock is used in the fabrication of dies, punches, gauges, bushings, and other tooling components requiring oil-hardening heat treatment. The 10-inch width and 18-inch length provide ample material for cutting multiple smaller blanks or for machining a single large component. This stock is appropriate for both job shop and production toolroom use where close-tolerance starting material reduces downstream grinding and finishing time.\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\u003c\/li\u003e\n\u003cli\u003eThickness tolerance of plus or minus 0.001 inches for precise as-received fitment\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.000 to minus 0.015 inches\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.250 inches, minus 0 inches\u003c\/li\u003e\n\u003cli\u003eSquareness held to 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003eLarge 10 inches by 18 inches face allows multiple blanks from a single piece\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard AISI O1 oil-hardening tool steel flat stock suitable for general toolroom, die making, and precision machining applications requiring an oil-quench hardenable material.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachining and heat treatment of tool steel flat stock should be performed by qualified machinists or tool and die makers familiar with O1 oil-hardening procedures. Appropriate personal protective equipment and machine guarding are required during all cutting, grinding, and milling operations. Oil-hardening heat treatment must follow established time-and-temperature cycles appropriate for AISI O1 steel and should be performed in a controlled atmosphere or properly equipped furnace to minimize decarburization. Always allow stock to reach ambient temperature before performing final precision measurements.\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: 10 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: 0.000 to minus 0.015 inches\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\u003eSquareness\u003c\/strong\u003e: 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 38.25 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: 54200\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51541155840306,"sku":"54200","price":1366.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_c44bd352-0c6f-4adb-91cc-e213b7cae24d.jpg?v=1785869145","url":"https:\/\/voomisupply.com\/products\/starrett-54200-o1-tool-steel-flat-stock-0-75x10x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}