{"product_id":"starrett-54329-o1-tool-steel-flat-stock-5-32x1-3-4x36-in","title":"Starrett 54329 O1 Tool Steel Flat Stock 5\/32x1-3\/4x36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54329 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die making, punches, and precision fixtures. Manufactured to AISI Type O1 specification, this flat stock measures 5\/32 inches thick, 1-3\/4 inches wide, and 36 inches long, weighing approximately 2.79 pounds. It holds a thickness tolerance of plus or minus 0.001 inches, making it suitable for applications that require close dimensional control before and after heat treatment. Machinists, toolmakers, and job shop professionals use O1 flat stock as a starting material for custom tooling, blades, and gauges.\u003c\/p\u003e\u003cp\u003eO1 tool steel flat stock is commonly used in machine shops, tool and die operations, and maintenance departments where a versatile, oil-quenching steel is required. The 36-inch length allows for multiple cuts from a single bar. The 5\/32 by 1-3\/4 inch cross-section suits thin plate tooling applications such as shims, flat punches, blanking dies, and wear plates. This material is supplied in the annealed condition and is intended for further machining, grinding, and heat treatment by the end user.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel — consistent composition for predictable heat treat response\u003c\/li\u003e\n\u003cli\u003eThickness of 5\/32 inches with a tight tolerance of plus or minus 0.001 inches\u003c\/li\u003e\n\u003cli\u003eWidth of 1-3\/4 inches with a width tolerance of 0.000 to minus 0.005 inches\u003c\/li\u003e\n\u003cli\u003eLength of 36 inches with a length tolerance of plus 0.015 inches\u003c\/li\u003e\n\u003cli\u003eEdge squareness held to 0.003 inches per inch across all edges\u003c\/li\u003e\n\u003cli\u003eSupplied in annealed condition, ready for machining and subsequent heat treatment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose O1 oil-hardening tool steel flat bar suitable for toolmaking, die making, and precision fixture fabrication across machine shop and industrial maintenance applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists or toolmakers using appropriate metalworking equipment. Heat treatment, including hardening and tempering, should follow established metallurgical procedures for AISI O1 tool steel and be carried out by personnel familiar with oil-quench hardening processes. Always use appropriate personal protective equipment when cutting or grinding tool steel. Consult applicable shop safety codes and equipment manufacturer guidelines before beginning any 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: 5\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1-3\/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: 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 0.015 inches\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: 2.79 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: 54329\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51541658304818,"sku":"54329","price":195.35,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_6dc4dc8d-9c54-40e1-905b-5f70acdb3844.jpg?v=1785881360","url":"https:\/\/voomisupply.com\/products\/starrett-54329-o1-tool-steel-flat-stock-5-32x1-3-4x36-in","provider":"Voomi Supply","version":"1.0","type":"link"}