Starrett 57205 A2 Tool Steel Flat Stock 0.625x0.625x18 in

Product Description

The STARRETT 57205 is an A2 air-hardening tool steel flat stock bar measuring 0.625 inches thick, 0.625 inches wide, and 18 inches long. A2 tool steel offers excellent dimensional stability during heat treatment, moderate toughness, and good wear resistance, making it a go-to choice for toolmakers and machinists fabricating dies, punches, gauges, and similar precision tooling components. Weighing approximately 1.99 pounds, this flat stock ships in a single piece and is sized for direct use in tool and die shops, maintenance departments, and machine shops where close-tolerance blanks are needed without extensive pre-machining.

This flat stock is suited for applications in tool and die making, jig and fixture fabrication, and general precision machining environments. A2 air-hardening steel is commonly selected when distortion control after hardening is a priority. The 18-inch length and square cross-section profile make it practical for blanking, saw cutting, and milling into finished tooling components. It is appropriate for both job shop and production toolroom settings handling small-to-medium tooling work.

Key Features

• A2 air-hardening tool steel for reduced distortion during heat treat cycles
• 0.625 inches thick by 0.625 inches wide square cross-section profile
• 18 inches overall length with a length tolerance of +0.25 inches
• Thickness, width, and square tolerances held to +0.010 to 0.015 inches
• Single-piece package at approximately 1.99 pounds, ready for immediate use

Compatibility

Designed as a standard A2 air-hardening tool steel flat stock blank suitable for general tool and die, punch, gauge, and fixture fabrication applications where AISI A2 material specification is required.

Installation Notes

Cutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists or toolmakers using appropriate personal protective equipment. Always follow established shop safety procedures when sawing or grinding hardened or pre-hardened steel. Heat treatment of A2 steel should be performed in accordance with the material specification and relevant shop or engineering standards. Wear eye and hand protection when handling bar stock with sharp edges.