Starrett 54353 O1 Oil-hardening Flat Stock 7/32x1/2x36 in

Product Description

The STARRETT 54353 is an O1 oil-hardening flat stock bar made from AISI Type O1 tool steel. It measures 7/32 inches thick, 1/2 inch wide, and 36 inches long, with a thickness tolerance of plus or minus 0.001 inches. O1 tool steel is a versatile oil-hardening grade known for good wear resistance and ease of machining in the annealed state. This flat stock is used by machinists, toolmakers, and metalworking professionals to fabricate punches, dies, gauges, cutting tools, and other precision tooling components that require reliable hardening response and dimensional accuracy.

This flat stock suits small-shop and production toolroom applications where a precise, ready-to-machine blank is needed. The 36-inch length allows for multiple blanks to be cut from a single piece. The 7/32 inch by 1/2 inch cross section fits common tooling and fixture-making applications where thin, narrow stock is specified. Machinists working on jigs, die sets, and small cutting tools will find this size practical for a range of bench work and light machining operations.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable heat-treat response
• Tight thickness tolerance of plus or minus 0.001 inches for precision fit-up
• Width tolerance of 0.000 to minus 0.005 inches holds close sizing for tooling work
• Length tolerance of plus 0.015 inches ensures full usable length
• Squareness held to 0.003 inches per inch on all edges
• Annealed condition allows conventional machining before hardening

Compatibility

Designed as a general-purpose O1 oil-hardening tool steel flat stock suitable for fabricating punches, dies, gauges, and precision tooling components in machine shop and toolroom environments.

Installation Notes

Cutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists using appropriate personal protective equipment. Heat treatment of O1 tool steel requires controlled furnace equipment and quenching in oil; follow established metallurgical procedures and shop safety protocols. Secure workpieces properly before machining to maintain dimensional accuracy and avoid injury. Consult applicable shop safety codes and material data sheets before performing heat-treat operations.