Starrett 56512 A2 Tool Steel Flat Stock 0.75x1x36 in

Product Description

The STARRETT 56512 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. Measuring 0.75 inches thick, 1 inch wide, and 36 inches long, this flat stock is ground to close tolerances: thickness and squareness held to plus or minus 0.001 inches, width tolerance of plus 0.000 to 0.005 inches, and length tolerance of plus 0.25 inches. AISI Type A2 tool steel offers good dimensional stability during heat treatment and strong wear resistance, making it a go-to material for punches, dies, and gauges. Machinists, tool and die makers, and precision fabricators are the primary users.

This flat stock is suited for job shops, tool rooms, and maintenance departments that need reliable A2 tool steel in a ready-to-machine bar form. The 36-inch length allows for multiple blanks to be cut from a single piece, reducing material waste on short-run tooling jobs. It is appropriate for both roughing and finish machining prior to hardening, and its ground surface provides a consistent starting reference for layout work.

Key Features

• AISI Type A2 air-hardening tool steel for good dimensional stability during hardening
• Ground flat stock with thickness tolerance of plus or minus 0.001 inches
• Width tolerance of plus 0.000 to 0.005 inches for close-fit applications
• Squareness held to 0.003 inches per inch on all edges
• 36-inch length supports multiple blanks from a single bar
• Ships as a single piece with no minimum order beyond one unit

Compatibility

Designed as a standard A2 air-hardening tool steel flat stock suitable for general toolmaking, die making, and precision machining applications requiring close-tolerance ground bar stock.

Installation Notes

Cutting, grinding, and machining of tool steel should be performed by qualified machinists using appropriate coolant and tooling rated for hardened or pre-hardened steel. Follow the material manufacturer heat-treat guidelines for A2 steel when hardening and tempering. Use proper personal protective equipment when cutting or grinding. Secure the workpiece firmly before any machining operation to maintain dimensional accuracy.