Starrett 54607 A2 Tool Steel Flat Stock 5/32x4x18 in

Product Description

The STARRETT 54607 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who require precise, ready-to-machine stock. This piece measures 5/32 inches thick, 4 inches wide, and 18 inches long, with a thickness tolerance of plus or minus 0.001 inches and a square tolerance of plus or minus 0.001 inches. A2 tool steel offers good dimensional stability during air-hardening heat treatment, making it a reliable choice for punches, dies, gauges, and forming tools where distortion must be minimized after hardening.

This flat stock is suited for job shops, tool-and-die operations, and maintenance departments that fabricate or refurbish cutting and forming tools. The 4-inch width and 18-inch length provide enough material for mid-sized blanks without requiring additional rough sawing in many applications. It ships as a single piece, appropriate for prototype work or short-run tooling builds where one blank is sufficient.

Key Features

• AISI A2 air-hardening tool steel for minimal distortion during heat treatment
• Thickness tolerance of plus or minus 0.001 inches for close-tolerance blanks
• Width tolerance of plus 0.000 to minus 0.005 inches for consistent fitment in tooling fixtures
• Length tolerance of plus 0.250 inches allows for face-milling or squaring to final dimension
• Square tolerance of plus or minus 0.001 inches reduces setup time on surface grinders
• Single-piece packaging suitable for prototype and short-run tooling applications

Compatibility

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

Installation Notes

Machining and heat treatment of tool steel flat stock should be performed by qualified toolmakers or machinists familiar with A2 steel grinding, milling, and hardening procedures. Always follow proper personal protective equipment protocols when cutting or grinding tool steel. Heat treatment, including austenitizing and air quench, should conform to the material manufacturer guidelines and applicable shop safety standards. Inspect dimensions before and after heat treatment to verify finished tolerances meet the application requirements.