{"product_id":"starrett-54789-a2-tool-steel-flat-stock-1x2-5x18-in","title":"Starrett 54789 A2 Tool Steel Flat Stock 1x2.5x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 54789 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, die makers, and machinists who need a precision-ground blank ready for heat treatment. Manufactured to AISI A2 specification, this flat stock measures 1 inch thick by 2-1\/2 inches wide by 18 inches long and holds a thickness tolerance of plus or minus 0.001 inches. The air-hardening designation means the steel reaches full hardness with minimal distortion during the heat-treat cycle, making it a reliable choice for punches, dies, gauges, and similar tooling components.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for tool and die shops, maintenance machining departments, and precision fabrication environments where tight dimensional control is required before and after hardening. The pre-cut 18-inch length reduces setup time when a specific blank length is needed. It is appropriate for both one-off tooling builds and small-batch production of cutting tools, forming dies, and wear components where A2 air-hardening steel is the specified material.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI A2 air-hardening tool steel construction for minimal distortion during heat treatment\u003c\/li\u003e\n\u003cli\u003eThickness tolerance of plus or minus 0.001 inches for precise fitment without additional grinding\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of plus 0.000 to 0.005 inches for controlled stock removal planning\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.250 inches ensures full usable length on every bar\u003c\/li\u003e\n\u003cli\u003eSquare tolerance of plus or minus 0.001 inches supports accurate layout and machining setups\u003c\/li\u003e\n\u003cli\u003eSingle-piece packaging with no minimum order beyond one unit\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard A2 air-hardening tool steel flat stock blank suitable for general tooling, die making, and precision machining applications where AISI A2 material specification is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eA2 tool steel flat stock is worked by qualified machinists and tool and die makers using conventional milling, grinding, and EDM equipment. Always follow the material manufacturer's recommended preheat, hardening, and tempering cycles for AISI A2 steel before placing hardened components into service. Handle bar stock with care to avoid nicks or surface damage that could initiate stress concentrations after hardening. Wear appropriate PPE when cutting, grinding, or heat-treating tool steel.\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 A2 Air-Hardening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Thickness\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 2-1\/2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\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 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\u003eSquare Tolerance\u003c\/strong\u003e: plus or minus 0.001 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 12.65 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31231200\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 54789\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51539490373938,"sku":"54789","price":685.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dd4885fbdd426ecb0fa6c3cc24fba2db_60aa9328-d974-4c1b-be73-67db0f95b5dc.jpg?v=1785841555","url":"https:\/\/voomisupply.com\/products\/starrett-54789-a2-tool-steel-flat-stock-1x2-5x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}