{"product_id":"starrett-57221-a2-tool-steel-flat-stock-1x2x18-in","title":"Starrett 57221 A2 Tool Steel Flat Stock 1x2x18 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe STARRETT 57221 is an A2 air-hardening tool steel flat stock bar measuring 1 inch thick, 2 inches wide, and 18 inches long. A2 tool steel is an oil- and air-hardening alloy known for its good dimensional stability during heat treatment and its balance of toughness and wear resistance. This flat stock is precision ground to close tolerances, making it suitable for toolmakers, machinists, and die makers who require consistent, reliable material for fabricating punches, dies, gauges, and cutting tools. The 57221 ships ready for layout, machining, or direct heat treatment without further pre-processing.\u003c\/p\u003e\u003cp\u003eThis flat stock is used in tool and die shops, production machine shops, and maintenance machining operations. It is well suited for applications where post-hardening dimensional change must be minimized, including blanking dies, form dies, trim dies, and precision gauging components. The 18-inch length accommodates most standard die-set and tooling applications without requiring a saw cut, reducing setup time in the shop.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAISI A2 air-hardening tool steel with excellent dimensional stability during heat treatment\u003c\/li\u003e\n\u003cli\u003ePrecision flat stock form: 1 inch thick, 2 inches wide, 18 inches long\u003c\/li\u003e\n\u003cli\u003eTight thickness and width tolerance of +0.010 to 0.015 inches for consistent fitment\u003c\/li\u003e\n\u003cli\u003eSquare tolerance of +0.010 to 0.015 inches ensures perpendicularity for layout and machining\u003c\/li\u003e\n\u003cli\u003eLength tolerance of +0.25 inches — stock arrives at or above nominal length\u003c\/li\u003e\n\u003cli\u003eReady for machining, grinding, or direct heat treatment as received\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard AISI A2 tool steel flat stock bar for use in general tool and die fabrication, fixture building, and precision machining applications where air-hardening tool steel material is specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachining and grinding of A2 tool steel flat stock should be performed by qualified toolmakers or machinists using appropriate cutting speeds and coolant. Heat treatment to harden A2 steel requires controlled atmosphere furnace equipment and should follow established metallurgical procedures for AISI A2 alloy. Always wear appropriate personal protective equipment when cutting, grinding, or handling tool steel stock. Secure the workpiece properly in a vise or fixture before any machining operation to prevent movement and ensure dimensional accuracy.\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\u003eOverall Thickness\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 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: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth Tolerance\u003c\/strong\u003e: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Tolerance\u003c\/strong\u003e: +0.010 to 0.015 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Tolerance\u003c\/strong\u003e: +0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 10.18 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: 57221\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"STARRETT","offers":[{"title":"Default Title","offer_id":51543544037682,"sku":"57221","price":592.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/dd4885fbdd426ecb0fa6c3cc24fba2db_6992b939-af89-421a-b601-6a291dfcfc04.jpg?v=1785920216","url":"https:\/\/voomisupply.com\/products\/starrett-57221-a2-tool-steel-flat-stock-1x2x18-in","provider":"Voomi Supply","version":"1.0","type":"link"}