Starrett 57556 A2 Tool Steel Flat Stock 0.125x8x18 in

Product Description

The STARRETT 57556 is an A2 air-hardening tool steel flat stock blank used in toolmaking, die making, and precision machining applications. It measures 0.125 inches thick, 8 inches wide, and 18 inches long, and ships in an annealed, pre-machined flat condition ready for layout, milling, or grinding before heat treatment. A2 tool steel offers a strong balance of wear resistance and dimensional stability during air hardening, making it a reliable choice for punches, dies, gauges, and cutting tools. This flat stock is sized for low-volume use, with a minimum order quantity of one piece.

This flat stock is suited for tool and die shops, machine shops, and maintenance departments requiring accurately sized A2 steel blanks. The 8-inch width and 18-inch length provide enough material for a range of tooling layouts without requiring additional sawing from bar stock. It is commonly worked by licensed machinists and tool and die makers who heat treat in-house or send out for professional hardening and tempering after final grinding.

Key Features

• AISI A2 air-hardening tool steel for good wear resistance and minimal distortion during heat treatment
• Thickness tolerance of plus 0.010 to 0.015 inches for consistent stock removal planning
• Width tolerance of plus 0.010 to 0.015 inches
• Length tolerance of plus 0.25 inches
• Square tolerance of plus 0.010 to 0.015 inches
• Single-piece packaging with no minimum order beyond one unit

Compatibility

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

Installation Notes

Machining and grinding of tool steel flat stock should be performed by qualified machinists using appropriate cutting fluids and tooling rated for hardened or semi-hardened steel. Heat treatment, including hardening and tempering, should follow AISI A2 guidelines and be performed by experienced personnel with proper furnace equipment. Always allow the workpiece to reach ambient temperature before final grinding to finished dimensions. Secure the workpiece firmly before any milling, sawing, or grinding operation to prevent movement and injury.