Drill Rod Tool Steels 57735 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 57735 is an O1 oil-hardening tool steel flat stock bar measuring 3/16 inches thick, 2-1/2 inches wide, and 18 inches long. Manufactured to AISI Type O1 specification, this flat stock is produced from tool steel and held to tight dimensional tolerances: plus or minus 0.001 inches on thickness, plus 0.005 inches on width, and plus 0.25 inches on length. O1 tool steel is a general-purpose oil-hardening grade valued for its predictable heat-treat response, good wear resistance, and ease of machining in the annealed state. Machinists, toolmakers, and die makers commonly work with this material to produce dies, punches, gauges, and cutting tools.

This flat bar is suited for job shops, tool rooms, and maintenance operations that require small quantities of O1 tool steel in a ready-to-machine form. The 18-inch length is a practical starting size for tooling blanks, jig components, and fixtures. The 3/16-inch thickness and 2-1/2-inch width cover a range of light die and punch applications where a thinner cross-section is required. This stock ships in an annealed condition, making it machinable before hardening and tempering to the desired final hardness.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable heat-treat response
• Thickness held to plus or minus 0.001 inches for precise fit in tooling applications
• Width tolerance of plus 0.005 inches allows for finish grinding to final dimension
• Edge squareness of 0.003 inches per inch of thickness for accurate layout and machining
• Supplied in annealed condition for ease of machining prior to hardening
• Single-piece minimum order quantity supports low-volume job shop and maintenance use

Compatibility

Designed as a general-purpose O1 oil-hardening tool steel flat stock suitable for toolmaking, die making, punch fabrication, gauges, and similar precision toolroom applications where AISI O1 material specification is required.

Installation Notes

Machining and heat treatment of O1 tool steel should be performed by qualified toolmakers or machinists familiar with oil-hardening steel procedures. Harden by heating to the appropriate austenitizing temperature and quenching in oil, then temper immediately to relieve stress and achieve target hardness. Follow all applicable shop safety practices when handling cutting fluids, quench oils, and heated workpieces. Verify final dimensions after grinding to confirm compliance with your tooling drawing tolerances.