Starrett 56510 A2 Tool Steel Flat Stock 5/8x1x36 in

Product Description

The STARRETT 56510 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. Measuring 0.625 inches thick, 1 inch wide, and 36 inches long, this flat stock is held to tight dimensional tolerances: plus or minus 0.001 inches on thickness, plus 0.000 to 0.005 inches on width, and plus 0.25 inches on length. AISI A2 tool steel offers excellent wear resistance and dimensional stability during heat treatment, making it a reliable choice for fabricating punches, dies, gauges, and cutting tools.

This flat stock is suited for machine shops, tool rooms, and die shops requiring accurately sized stock before rough machining and heat treat. The AISI A2 grade air-hardens in still air, reducing distortion compared to oil-hardening grades. It is commonly used in residential and commercial toolmaking environments where consistent cross-section geometry and predictable heat-treat response are required. Machinists and tool-and-die makers specify this material for applications demanding close tolerances and good edge retention after hardening.

Key Features

• AISI A2 air-hardening tool steel for reduced distortion during heat treatment
• Thickness held to plus or minus 0.001 inches for precise stock removal planning
• Width tolerance of plus 0.000 to 0.005 inches supports accurate layout
• Squareness held to 0.003 inches per inch on all edges
• 36-inch length with plus 0.25-inch length tolerance provides full usable stock
• Weighs 7.33 pounds, suitable for single-piece toolmaking applications

Compatibility

Designed as a standard AISI A2 air-hardening tool steel flat bar for use in toolmaking, die making, and precision machining applications requiring pre-sized flat stock.

Installation Notes

This material is typically cut, machined, and heat-treated by tool-and-die makers or machinists in a shop environment. Use appropriate cutting tools rated for tool steel and follow the material supplier heat-treat guidelines for AISI A2 grade. Wear appropriate PPE when cutting or grinding. Consult applicable shop safety codes when performing heat-treat operations.