{"product_id":"starrett-54287-o1-tool-steel-flat-stock-3-32-x-4-x-36-in","title":"Starrett 54287 O1 Tool Steel Flat Stock 3\/32 X 4 X 36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54287 is an O1 oil-hardening tool steel flat stock bar used in tool and die work, jig and fixture fabrication, punches, gauges, and precision machined components. Made from AISI Type O1 oil-hardening tool steel, this flat bar measures 3\/32 inches thick, 4 inches wide, and 36 inches long. Thickness tolerance is held to +\/- 0.001 inches, giving machinists and toolmakers the dimensional consistency needed for close-tolerance applications. At 3.84 pounds per piece, this is a full-length bar ready for layout, machining, and heat treatment.\u003c\/p\u003e\u003cp\u003eO1 tool steel flat stock is a standard material in machine shops, tool rooms, and fabrication environments. It is commonly used to produce blanking dies, forming tools, cutting blades, and wear plates. This bar is supplied in the annealed condition, making it machinable before hardening. After machining, it is hardened by oil quenching and then tempered to the required hardness for the application. Machinists, toolmakers, and industrial maintenance technicians are the typical end users.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel — standard grade for dies, punches, and precision tooling\u003c\/li\u003e\n\u003cli\u003eThickness: 3\/32 inches with +\/- 0.001 inch tolerance\u003c\/li\u003e\n\u003cli\u003eWidth: 4 inches with tolerance of -0.000 to -0.005 inches\u003c\/li\u003e\n\u003cli\u003eLength: 36 inches with +0.015 inch length tolerance\u003c\/li\u003e\n\u003cli\u003eEdge squareness: 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003eSupplied in annealed condition for machining prior to heat treatment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard O1 oil-hardening tool steel flat bar suitable for use in tool and die, jig and fixture, and general precision machining applications requiring AISI Type O1 material.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting and machining should be performed in the annealed condition before oil quenching and tempering. Use appropriate personal protective equipment and machine guarding when sawing or milling tool steel bar stock. Heat treatment should be performed by qualified personnel following established procedures for O1 tool steel. Secure the workpiece firmly before any machining operation to prevent movement.\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: 3\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 4 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: +\/- 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 on all edges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.84 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: 54287\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51541298282802,"sku":"54287","price":314.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_7a24cd65-a4ef-46e5-a513-40522e0fb056.jpg?v=1785871663","url":"https:\/\/voomisupply.com\/products\/starrett-54287-o1-tool-steel-flat-stock-3-32-x-4-x-36-in","provider":"Voomi Supply","version":"1.0","type":"link"}