{"product_id":"starrett-53955-o1-tool-steel-flat-stock-1-16x3-4x18-in","title":"Starrett 53955 O1 Tool Steel Flat Stock 1\/16x3\/4x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 53955 is an O1 oil-hardening tool steel flat stock bar intended for precision toolmaking, jig and fixture fabrication, punches, dies, and similar machined components. Manufactured to AISI Type O1 specification, this flat stock measures 1\/16 inch thick, 3\/4 inch wide, and 18 inches long, with a thickness tolerance of plus or minus 0.001 inches. The tight dimensional control makes it suitable for applications where close fits and accurate stock sizing reduce downstream grinding time. Machinists, tool-and-die makers, and maintenance tradespeople working in metal fabrication shops are the primary users of this material.\u003c\/p\u003e\u003cp\u003eO1 tool steel flat stock is commonly used in low-to-medium production tooling environments. It machines well in the annealed condition and is hardened by oil quench after austenitizing, making it a practical choice for small punches, blades, gauges, and wear parts. This piece, at 18 inches long, provides a workable blank length for single-piece or small-batch component machining without requiring initial cutoff from larger bar stock.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI Type O1 oil-hardening tool steel for predictable heat-treat response\u003c\/li\u003e\n\u003cli\u003eThickness tolerance of plus or minus 0.001 inches for precise stock sizing\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of 0.0000 to minus 0.005 inches\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.250 inches, minus 0 inches\u003c\/li\u003e\n\u003cli\u003eEdge squareness held to 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003eReady-to-machine annealed flat stock in a single-piece quantity\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose O1 oil-hardening tool steel flat blank suitable for machining into punches, dies, blades, gauges, and wear components in tool-and-die and maintenance machining applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting, grinding, and heat treating tool steel should be performed by qualified machinists or tool-and-die makers familiar with AISI O1 material handling. Secure the workpiece properly before any machining operation and use appropriate cutting fluids to manage heat at the cutting edge. Heat treating to final hardness requires controlled austenitizing and oil-quench procedures following the material specification — do not substitute water quench. Eye protection, chip guards, and proper ventilation are required during all machining and grinding 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\/16 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 3\/4 inch\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: 0.0000 to minus 0.005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: plus 0.250 inches, minus 0 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: 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: 53955\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51543684612402,"sku":"53955","price":45.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6555d28ffd7e02d6cc316d25961d7428_4677939f-b2fb-4ab1-a3c1-735b69c779bb.jpg?v=1785921391","url":"https:\/\/voomisupply.com\/products\/starrett-53955-o1-tool-steel-flat-stock-1-16x3-4x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}