{"product_id":"starrett-56963-o1-tool-steel-flat-stock-3-16x2x18-in","title":"Starrett 56963 O1 Tool Steel Flat Stock 3\/16x2x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 56963 is an O1 oil-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who need a ground, ready-to-machine blank. This piece measures 3\/16 inches thick, 2 inches wide, and 18 inches long and is manufactured to AISI Type O1 specification. O1 is a general-purpose tool steel known for good machinability in the annealed state and reliable hardness response when oil quenched. Thickness and width tolerances are held to +0.010 to 0.015 inches. Length tolerance is +0.25 inches. Edge squareness is held to 0.003 inches per inch, making it suitable for precise layout and tooling applications without extensive pre-machining.\u003c\/p\u003e\u003cp\u003eThis flat stock is used in machine shops, toolrooms, and maintenance departments for fabricating punches, dies, gauges, jigs, fixtures, and cutting tools. It ships in the annealed condition, ready for machining prior to heat treatment. The 18-inch length and 2-inch width make it practical for short-run tooling blanks, lathe tool stock, and general flat die work. It is appropriate for both production tool shops and individual trade professionals requiring a single piece of precision tool steel.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel in the annealed, machinable condition\u003c\/li\u003e\n\u003cli\u003eThickness tolerance of +0.010 to 0.015 inches for close-tolerance tooling applications\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of +0.010 to 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\u003eLength tolerance of +0.25 inches\u003c\/li\u003e\n\u003cli\u003eSold as a single piece with no minimum order beyond one unit\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 and die-making applications where O1 specification material is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachining and heat treatment of tool steel should be performed by a qualified machinist or toolmaker. Always follow proper shop safety procedures when cutting, grinding, or milling tool steel, including the use of appropriate PPE and machine guarding. Oil quenching during hardening requires a controlled quench tank and should be performed according to established metallurgical practices for O1 tool steel. Allow the material to fully cool before handling post-quench, and perform a stress-relief temper promptly to reduce the risk of cracking.\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\/16 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 2 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: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: +0.25 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: 1.91 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 56963\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51540714291506,"sku":"56963","price":122.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_594595da-440a-477c-a671-f9d157bbaf3c.jpg?v=1785862726","url":"https:\/\/voomisupply.com\/products\/starrett-56963-o1-tool-steel-flat-stock-3-16x2x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}