Starrett 57545 A2 Tool Steel Flat Stock 1/8x1-1/4x18 in

Product Description

The STARRETT 57545 is an A2 air-hardening tool steel flat stock bar intended for tool and die makers, machinists, and toolroom professionals who need a reliable, dimensionally consistent blank for fabricating punches, dies, fixtures, gauges, and cutting tools. This flat stock measures 0.125 inches thick, 1.25 inches wide, and 18 inches long, with a weight of 0.8 pounds per piece. A2 tool steel is known for its good dimensional stability during heat treatment and its balance of toughness and wear resistance, making it a practical choice for general toolroom work where air-hardening steel is specified.

This flat stock is suited for toolroom and light manufacturing environments, including job shops, maintenance shops, and production facilities that machine, grind, or fabricate tooling components. It ships as a single piece and can be cut, milled, or ground to finished dimensions before or after hardening. The 18-inch length provides enough stock for multiple smaller parts or a single longer tool blank. Professionals specifying AISI A2 air-hardening tool steel for stamping tooling, gauging plates, or custom fixtures will find this bar a direct fit for those applications.

Key Features

• AISI A2 air-hardening tool steel for good dimensional stability during heat treatment
• Thickness: 0.125 inches with a tolerance of +0.010 to 0.015 inches
• Width: 1.25 inches with a tolerance of +0.010 to 0.015 inches
• Length: 18 inches with a tolerance of +0.25 inches
• Square tolerance of +0.010 to 0.015 inches for consistent cross-section geometry
• Sold as a single piece, minimum order quantity of 1

Compatibility

Designed as an OEM-style flat bar blank for toolroom fabrication applications requiring AISI A2 air-hardening tool steel in a 0.125-inch by 1.25-inch cross-section profile.

Installation Notes

Machining and heat treatment of A2 tool steel should be performed by a qualified machinist or toolmaker following accepted toolroom practices. Always follow appropriate safety procedures when cutting, grinding, or hardening tool steel, including the use of proper personal protective equipment. Heat treatment processes, including austenitizing temperature and quench method, should follow the material manufacturer's published guidelines for AISI A2 steel. Do not infer hardening parameters from this listing alone.