{"product_id":"drill-rod-tool-steels-66768-o1-tool-steel-flat-stock","title":"Drill Rod Tool Steels 66768 O1 Tool Steel Flat Stock","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe DRILL ROD TOOL STEELS 66768 is an O1 oil-hardening tool steel flat stock bar measuring 3\/8 inches thick, 1\/2 inches wide, and 18 inches long. AISI Type O1 tool steel is a general-purpose oil-hardening grade known for good dimensional stability during heat treatment and excellent machinability in the annealed state. This flat stock ships in the soft, annealed condition and is ready for machining, grinding, and subsequent oil-quench hardening. Machinists, tool-and-die makers, and precision fabricators use this material to produce dies, punches, gauges, and cutting tools where tight tolerances and predictable hardening response are required.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for job shops, tool rooms, and maintenance departments running small-batch or one-off tool fabrication. The 18-inch length and 3\/8 x 1\/2 inch cross-section make it practical for bench-scale tooling projects without the waste associated with full-length bar stock. Thickness tolerance is held to plus or minus 0.001 inches, width tolerance is plus 0.005 inches minus 0.000 inches, and length tolerance is plus 0.25 inches, supporting close-tolerance work from the saw.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for predictable, controlled heat treatment\u003c\/li\u003e\n\u003cli\u003eThickness tolerance of plus or minus 0.001 inches for precision layout work\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of plus 0.005 inches, minus 0.000 inches\u003c\/li\u003e\n\u003cli\u003eSquareness held to 0.003 inches on edges and 0.004 inches per inch of thickness on ends\u003c\/li\u003e\n\u003cli\u003eAnnealed condition allows machining and grinding before hardening\u003c\/li\u003e\n\u003cli\u003e18-inch length minimizes drop waste on small tooling jobs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose flat stock replacement or raw material for tool-and-die, punch, gauge, and cutting-tool fabrication in any shop equipped for oil-quench heat treatment of O1 tool steel.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachining and grinding of O1 tool steel flat stock should be performed in the annealed condition before hardening. Oil-quench heat treatment requires appropriate furnace equipment and personal protective equipment and should be carried out by personnel familiar with AISI O1 heat-treatment procedures. Secure workpieces properly during milling or grinding operations to maintain the tight tolerances this material is specified for. Consult applicable shop safety standards and material data sheets before beginning thermal processing.\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\/8 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1\/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: plus or minus 0.001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: plus 0.005 inches, minus 0.000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: plus 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Tolerance\u003c\/strong\u003e: plus or minus 0.003 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquareness\u003c\/strong\u003e: Edge 0.003 inches; End 0.004 inches per inch of thickness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.97 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: DRILL ROD TOOL STEELS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 66768\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DRILL ROD \u0026 TOOL STEELS","offers":[{"title":"Default Title","offer_id":51971141370162,"sku":"66768","price":54.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0bd010a1cae711f9686084786dbdb869_0e48a31a-99c1-4ae7-981c-33fe91e17670.jpg?v=1789953490","url":"https:\/\/voomisupply.com\/products\/drill-rod-tool-steels-66768-o1-tool-steel-flat-stock","provider":"Voomi Supply","version":"1.0","type":"link"}