Starrett 57544 A2 Tool Steel Flat Stock 1/8x1x18 in

Product Description

The STARRETT 57544 is an A2 air-hardening tool steel flat stock bar intended for toolmakers, die makers, machinists, and fabricators who need a reliable, ready-to-machine blank. A2 tool steel offers a balanced combination of wear resistance, toughness, and dimensional stability during heat treatment, making it a widely used choice for punches, dies, gauges, and cutting tools. This piece measures 0.125 inches thick by 1 inch wide by 18 inches long and weighs 0.64 pounds. Thickness, width, and square tolerances are held to plus 0.010 to 0.015 inches, with a length tolerance of plus 0.25 inches, giving machinists a predictable starting blank with minimal stock removal required.

This flat stock is suited for job-shop and production toolroom environments. It is commonly used to fabricate punches, form dies, blanking dies, stripper plates, and custom gauges in both light industrial and precision manufacturing settings. The 18-inch length accommodates a wide range of single-piece tool blanks without requiring additional cuts from full bar stock. Machinists working in tool and die, mold making, and general precision machining will find this a practical, single-piece blank at a workable size.

Key Features

• A2 air-hardening tool steel per AISI designation — stable during heat treat with minimal distortion
• Thickness: 0.125 inches with a tolerance of plus 0.010 to 0.015 inches
• Width: 1 inch with a tolerance of plus 0.010 to 0.015 inches
• Length: 18 inches with a tolerance of plus 0.25 inches
• Square tolerance held to plus 0.010 to 0.015 inches for consistent cross-section geometry
• Single-piece quantity — no minimum bulk purchase required

Compatibility

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

Installation Notes

A2 tool steel flat stock is machined and heat-treated by qualified toolmakers or machinists. Follow standard toolroom practices when sawing, milling, or grinding this material. Heat treatment should be performed by personnel familiar with A2 steel hardening, quenching, and tempering procedures in accordance with applicable shop specifications. Always wear appropriate PPE when cutting or grinding tool steel.