{"product_id":"starrett-54334-o1-tool-steel-flat-stock-5-32x4x36-in","title":"Starrett 54334 O1 Tool Steel Flat Stock 5\/32x4x36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54334 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die work, jig fabrication, and precision machining applications. It is manufactured from AISI Type O1 tool steel, a widely used oil-hardening grade known for its dimensional stability during heat treatment and its ability to hold a sharp edge after hardening. This bar measures 5\/32 inches thick, 4 inches wide, and 36 inches long, weighing approximately 6.35 pounds. Thickness tolerance is plus or minus 0.001 inches, making it suitable for applications that demand tight dimensional control before and after machining.\u003c\/p\u003e\u003cp\u003eO1 tool steel flat stock is a standard material in job shops, toolrooms, and maintenance departments. This bar is appropriate for fabricating punches, dies, blades, gauges, and fixtures where a machinable blank must later be hardened and ground to final dimension. The 4-inch width and 36-inch length provide sufficient stock for a range of medium-format tooling layouts. Machinists and tool-and-die makers typically rough-machine the blank in the annealed condition before sending it through oil-hardening heat treatment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for predictable hardening response and dimensional stability\u003c\/li\u003e\n\u003cli\u003eThickness tolerance of plus or minus 0.001 inches for tight pre-machining fits\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.015 inches, zero minus, ensuring full usable length\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.000 to minus 0.005 inches for consistent stock width\u003c\/li\u003e\n\u003cli\u003eEdge squareness held to 0.003 inches per inch across all edges\u003c\/li\u003e\n\u003cli\u003eAnnealed flat stock ready for machining, then oil-quench hardening\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard O1 oil-hardening tool steel flat bar suitable for general toolroom, die-making, and precision fabrication applications requiring an AISI Type O1 material specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eO1 tool steel flat stock is worked by tool-and-die makers and machinists using conventional milling, grinding, and drilling equipment while in the annealed state. After machining to near-net shape, the bar is oil-quench hardened per the material specification — heat treatment should be performed by qualified personnel following established metallurgical procedures. Wear appropriate PPE when cutting, grinding, or machining steel bar stock. Secure workpieces properly to prevent movement during machining 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: 5\/32 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 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: 0.003 inches per inch, all edges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 6.35 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: 54334\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51542783361330,"sku":"54334","price":372.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_b43003d6-5a01-4674-9c2e-eedd56afefc8.jpg?v=1785907339","url":"https:\/\/voomisupply.com\/products\/starrett-54334-o1-tool-steel-flat-stock-5-32x4x36-in","provider":"Voomi Supply","version":"1.0","type":"link"}