{"product_id":"starrett-54169-o1-tool-steel-flat-stock-9-16x1-1-4x18-in","title":"Starrett 54169 O1 Tool Steel Flat Stock 9\/16x1-1\/4x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54169 is an O1 oil-hardening tool steel flat stock bar intended for use in toolmaking, die making, jig fabrication, and precision machining applications. Manufactured to AISI Type O1 specification, this flat stock measures 9\/16 inches thick, 1-1\/4 inches wide, and 18 inches long, and weighs 3.59 pounds. Thickness tolerance is held to +\/- 0.001 inches, reflecting the close dimensional control expected in tool steel stock. Machinists and tool and die makers select O1 for its excellent machinability in the annealed state and its predictable response to oil-hardening heat treatment.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for fabricating punches, dies, gauges, bushings, and general toolroom components where tight dimensional tolerances and consistent material quality are required. It is typically purchased by tool and die shops, machine shops, and maintenance departments that need a reliable, readily machinable tool steel in cut-to-use lengths. The 18-inch length makes it practical for a wide range of bench and machine work without requiring additional cutting before use.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for predictable heat treatment response\u003c\/li\u003e\n\u003cli\u003eThickness held to +\/- 0.001 inches for close-tolerance toolroom work\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.0000 to 0.0050 inches (minus zero, plus 0.005 inches)\u003c\/li\u003e\n\u003cli\u003eLength tolerance of +0.250 inches, minus zero\u003c\/li\u003e\n\u003cli\u003eEdge squareness: 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003eSupplied in annealed condition, ready for machining prior to hardening\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 toolmaking, die making, and precision fixture fabrication in machine shop and toolroom environments.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO1 tool steel flat stock is worked by machinists and tool and die makers using conventional milling, grinding, and sawing equipment. Heat treatment should be performed by qualified personnel following established procedures for AISI O1 oil-hardening steel, including proper preheat, austenitizing, and quenching in oil. Always allow material to reach uniform temperature before quenching to minimize distortion. Follow applicable shop safety standards when handling hot material and quench oils.\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: 9\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1-1\/4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 18 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: 0.0000 to 0.0050 inches (minus zero, plus 0.005 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: +0.250 inches, minus zero\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquareness\u003c\/strong\u003e: Edge: all 0.003 inches per inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.59 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: 54169\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51540839334194,"sku":"54169","price":192.25,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_2a4834be-26f5-4525-bb6b-1cae1043fdf8.jpg?v=1785864682","url":"https:\/\/voomisupply.com\/products\/starrett-54169-o1-tool-steel-flat-stock-9-16x1-1-4x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}