Starrett 57511 A2 Tool Steel Flat Stock 0.125x10x18 in

Product Description

The STARRETT 57511 is an A2 air-hardening tool steel flat stock bar used in toolmaking, die making, and precision machining applications. Measuring 0.125 inches thick, 10 inches wide, and 18 inches long, this flat stock is cut and ground to tight dimensional tolerances: plus or minus 0.001 inches on thickness, plus or minus 0.001 inches on squareness, plus 0.000 to 0.015 inches on width, and plus 0.250 inches on length. A2 tool steel offers good toughness combined with excellent wear resistance and minimal distortion during air-hardening heat treatment, making it a reliable choice for fabricating punches, dies, gauges, and other precision tooling components. The piece ships at approximately 6.33 pounds.

This flat stock is suited for job shop machinists, tool and die makers, and maintenance shops requiring a ready-to-machine blank in AISI A2 tool steel. The 10-inch width and 18-inch length provide enough material for a range of medium-sized tooling blanks without requiring further breakdown from larger bar stock. It is commonly used in both light industrial and heavy manufacturing environments where dimensional consistency before heat treatment is critical to final part accuracy.

Key Features

• AISI A2 air-hardening tool steel for minimal distortion during heat treatment
• Thickness tolerance of plus or minus 0.001 inches for precise pre-machined fitment
• Width tolerance of plus 0.000 to 0.015 inches ensures consistent blank sizing
• Squareness tolerance of plus or minus 0.001 inches supports accurate layout and setup
• Length tolerance of plus 0.250 inches provides cleanup stock for facing operations
• Ready-to-machine flat stock format reduces prep time in toolroom applications

Compatibility

Designed as a standard AISI A2 air-hardening tool steel flat stock blank suitable for toolroom machining, die making, and precision fabrication applications requiring ground flat stock in this size range.

Installation Notes

Machining and heat treatment of A2 tool steel should be performed by qualified toolmakers or machinists familiar with tool steel handling procedures. Follow the material manufacturer guidelines for preheating, hardening temperature, and air-quench cooling sequence to achieve correct hardness without cracking. Always use appropriate cutting fluids and tooling rated for tool steel when milling, grinding, or drilling this material. Secure the workpiece firmly before any machining operation to prevent movement given the material weight.