{"product_id":"starrett-57345-a2-tool-steel-flat-stock-3-8x3-4x36-in","title":"Starrett 57345 A2 Tool Steel Flat Stock 3\/8x3\/4x36 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 57345 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. Manufactured to AISI A2 specifications, this flat stock offers tight dimensional tolerances and consistent squareness, making it suitable for fabricating punches, dies, gauges, and other precision tooling components. The bar measures 0.375 inches thick, 0.750 inches wide, and 36 inches long, with a weight of 3.29 pounds. Thickness tolerance is held to plus or minus 0.001 inches, and squareness is controlled to 0.003 inches per inch on all edges. Licensed machinists and tool-and-die makers are the primary users of this material.\u003c\/p\u003e\u003cp\u003eThis flat stock is suited for job shops, tool rooms, and manufacturing facilities requiring close-tolerance raw stock for custom tooling. A2 tool steel is a common choice when moderate toughness combined with good wear resistance and air-hardening characteristics are needed. The 36-inch length allows for multiple parts to be cut from a single bar, reducing material waste in production environments. This bar ships as a single piece and requires no minimum order beyond one unit.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI A2 air-hardening tool steel for consistent heat-treat response without oil quench\u003c\/li\u003e\n\u003cli\u003eThickness tolerance of plus or minus 0.001 inches for precision fitment\u003c\/li\u003e\n\u003cli\u003eWidth tolerance of plus 0.000 to 0.005 inches\u003c\/li\u003e\n\u003cli\u003eLength tolerance of plus 0.25 inches\u003c\/li\u003e\n\u003cli\u003eSquareness held to 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003e36-inch bar length supports multi-part cutting from a single piece\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a general-purpose A2 tool steel flat stock for use in tool-and-die, jig, fixture, and precision machining applications requiring air-hardening material.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eCutting and machining should be performed by qualified machinists using appropriate tooling rated for hardened or pre-hardened steel stock. Heat treating to final hardness should follow established AISI A2 protocols and is typically performed by a licensed heat-treat facility or in-house with calibrated furnace equipment. Always use appropriate personal protective equipment when cutting, grinding, or machining tool steel bar stock.\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\u003eThickness\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.750 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: plus 0.000 to 0.005 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: plus 0.25 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\u003eSquareness\u003c\/strong\u003e: 0.003 inches per inch on all edges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.29 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: 57345\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51540603109682,"sku":"57345","price":190.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dd4885fbdd426ecb0fa6c3cc24fba2db_5b950ae7-146a-4dd2-880d-66e4e204a5ff.jpg?v=1785859762","url":"https:\/\/voomisupply.com\/products\/starrett-57345-a2-tool-steel-flat-stock-3-8x3-4x36-in","provider":"Voomi Supply","version":"1.0","type":"link"}