Starrett 57500 A2 Tool Steel Flat Stock 3/32 X 1 X 18 in

Product Description

The STARRETT 57500 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die work, and precision machining applications. Measuring 3/32 inches thick by 1 inch wide by 18 inches long, this flat stock is manufactured to close dimensional tolerances, including a thickness tolerance of plus or minus 0.001 inches and a width tolerance of plus 0.000 to 0.005 inches. The A2 grade designation indicates an air-hardening, medium-alloy cold-work tool steel that offers good dimensional stability during heat treatment. Machinists, tool and die makers, and metalworking professionals use this flat stock as raw material for punches, dies, gauges, and precision tooling components.

This flat stock is suited for tool room environments where consistent cross-section dimensions are critical before machining and heat treating. It is a standard choice for cold-work tooling applications in both job shop and production environments. The 18-inch length provides workable stock for a variety of cut-to-fit applications without excessive waste. Professionals working on small die components, form tools, and custom gauges will find the 1-inch width and 3/32-inch thickness combination practical for many common tooling profiles.

Key Features

• A2 air-hardening tool steel for good dimensional stability during heat treatment
• Close thickness tolerance of plus or minus 0.001 inches for precision fitment
• Width tolerance of plus 0.000 to 0.005 inches for consistent stock sizing
• Length tolerance of plus 0.250 inches provides usable full-length material
• Square tolerance of plus or minus 0.001 inches ensures reliable right-angle edges
• 18-inch length suitable for a wide range of toolroom cutting applications

Compatibility

Designed as a general-purpose A2 air-hardening tool steel flat stock for toolmaking, die making, and precision machining applications requiring AISI A2 material specification.

Installation Notes

This material should be cut, ground, and machined by qualified tool and die makers or machinists using equipment appropriate for tool steel stock. Follow established heat-treating procedures for AISI A2 tool steel, including proper preheat and air-quench cycles, using only equipment rated for tool steel hardening temperatures. Always wear appropriate personal protective equipment when sawing, grinding, or machining tool steel. Consult the material manufacturer's heat-treat data sheet before processing.