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The STARRETT 54596 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. Measuring 0.125 inches thick, 4 inches wide, and 18 inches long, this flat stock is manufactured to tight dimensional tolerances, including plus or minus 0.001 inches on thickness and squareness. A2 tool steel offers excellent dimensional stability during air hardening, making it a reliable choice for punches, dies, gauges, and forming tools. This piece is ready to machine and heat treat to working hardness. Machinists, tool and die makers, and industrial fabricators are the typical end users.
This flat stock is suited for job shop toolrooms, production die shops, and maintenance departments that require a reliable, machinable blank in a standard rectangular section. The 18-inch length provides enough stock for multiple smaller tool blanks or a single full-length component. The 4-inch width accommodates larger die sections or wide forming components without requiring additional material joining. AISI A2 air-hardening tool steel is a common specification in tooling environments where through-hardening with minimal distortion is required.
Designed as a general-purpose A2 tool steel flat stock blank for use in toolmaking, die making, and precision fabrication applications requiring air-hardening material in a 0.125 inch by 4 inch by 18 inch section.
Machining and heat treating of A2 tool steel should be performed by qualified machinists or tool and die makers familiar with air-hardening steels. Always follow established shop safety practices when cutting, grinding, or heat treating tool steel. Allow the workpiece to cool uniformly after hardening to minimize stress and distortion. Consult the material specification sheet for recommended hardening temperatures and procedures before heat treatment.
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