{"product_id":"starrett-57229-o1-tool-steel-flat-stock-1-8x3-8x18-in","title":"Starrett 57229 O1 Tool Steel Flat Stock 1\/8x3\/8x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 57229 is an O1 oil-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who need a reliable, machinable blank for custom tooling, punches, dies, and gauges. Manufactured to AISI Type O1 specification, this flat stock measures 1\/8 inch thick by 3\/8 inch wide by 18 inches long and weighs 0.24 pounds. Thickness tolerance is held to plus or minus 0.001 inches, making it suitable for applications where dimensional consistency before hardening is critical. O1 tool steel is widely used in job shops and tool rooms for its good machinability in the annealed state and its ability to achieve high hardness after oil quenching.\u003c\/p\u003e\u003cp\u003eThis flat stock is appropriate for small tooling blanks, form tools, scribes, cutting blades, and similar components fabricated in both production and one-off toolroom environments. The 18-inch length provides a practical working blank that can be cut to size on a bandsaw or cold saw. Its compact cross-section makes it well suited for slender punch blanks, small die components, and precision layout or measuring tools. This material is typically worked by machinists and tool and die makers in both commercial and in-house tool rooms.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for good machinability and high post-quench hardness\u003c\/li\u003e\n\u003cli\u003eTight thickness tolerance of plus or minus 0.001 inches for dimensional consistency\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.000 to minus 0.005 inches ensures reliable fit in close-clearance applications\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.250 inches provides extra stock for facing or squaring operations\u003c\/li\u003e\n\u003cli\u003eSquareness held to 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003eSold individually as a single 18-inch bar with no minimum order beyond one piece\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard AISI Type O1 oil-hardening tool steel flat stock suitable for general toolroom and die-making applications requiring a pre-cut blank in a 1\/8 inch by 3\/8 inch cross-section.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachining and grinding should be performed in the annealed state before hardening. Oil quenching and tempering should be carried out by qualified personnel following established heat-treatment procedures for AISI O1 tool steel. Wear appropriate PPE when cutting, grinding, or heat-treating tool steel. Consult applicable shop safety standards before performing any hardening operations.\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: 1\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 3\/8 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 0.005 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: 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.24 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: 57229\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51539017531698,"sku":"57229","price":45.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_7d568730-ca63-4130-8b81-36510adecce9.jpg?v=1785832938","url":"https:\/\/voomisupply.com\/products\/starrett-57229-o1-tool-steel-flat-stock-1-8x3-8x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}