{"product_id":"starrett-56500-a2-tool-steel-flat-stock-0-75x1-5x18-in","title":"Starrett 56500 A2 Tool Steel Flat Stock 0.75x1.5x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 56500 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. It ships in an annealed condition ready for machining, then hardens by air quench after heat treatment — a key advantage of A2 over oil-hardening grades due to reduced distortion during the hardening cycle. The bar measures 0.75 inches thick, 1.5 inches wide, and 18 inches long and weighs 5.76 pounds. Thickness and squareness tolerances are held to plus or minus 0.001 inches, making it suitable for applications where dimensional precision before heat treat is critical.\u003c\/p\u003e\u003cp\u003eThis flat stock is used in the fabrication of punches, dies, forming tools, gauges, and general toolroom work. The A2 grade offers good wear resistance and moderate toughness, making it a common choice for cold-work tooling in both job shop and production toolroom environments. Machinists and tool and die makers working to tight finished tolerances will find the controlled width tolerance of plus 0.000 to plus 0.005 inches and length tolerance of plus 0.250 inches consistent with standard tool steel flat stock expectations.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eA2 air-hardening tool steel — reduced distortion versus oil-hardening grades during heat treatment\u003c\/li\u003e\n\u003cli\u003eThickness tolerance: plus or minus 0.001 inches for consistent pre-machining stock removal planning\u003c\/li\u003e\n\u003cli\u003eWidth tolerance: plus 0.000 to plus 0.005 inches\u003c\/li\u003e\n\u003cli\u003eLength tolerance: plus 0.250 inches\u003c\/li\u003e\n\u003cli\u003eSquareness tolerance: plus or minus 0.001 inches\u003c\/li\u003e\n\u003cli\u003eWeighs 5.76 pounds — suitable for single-piece toolroom use at MOQ of 1\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard A2 air-hardening tool steel flat stock for cold-work tooling, die making, and precision toolroom fabrication applications requiring controlled dimensional tolerances.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eTool and die makers and machinists should machine this stock in the annealed condition before heat treatment. Heat treatment of A2 tool steel should follow the material specification guidelines for austenitizing temperature, soak time, and air-quench procedure — consult a qualified heat treater or the AISI A2 data sheet for process parameters. Grinding after heat treat is standard practice to reach final dimensions. Handle hardened tool steel with appropriate personal protective equipment, as hardened stock can be brittle before tempering is complete.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Tool Steel, AISI Type A2 Air-Hardening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 1.5 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 0.000 to plus 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 Tolerance\u003c\/strong\u003e: plus or minus 0.001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 5.76 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: 56500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51540712456498,"sku":"56500","price":381.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dd4885fbdd426ecb0fa6c3cc24fba2db_7ef958c5-0894-4f38-9051-c2d0e6a9c368.jpg?v=1785862674","url":"https:\/\/voomisupply.com\/products\/starrett-56500-a2-tool-steel-flat-stock-0-75x1-5x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}