Drill Rod Tool Steels 57812 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 57812 is an O1 oil-hardening tool steel flat stock bar conforming to AISI Type O1 specification. It measures 0.625 inches thick, 6 inches wide, and 18 inches long, with a weight of 19.33 pounds. O1 tool steel is a general-purpose oil-hardening grade known for its dimensional stability during heat treatment, good wear resistance, and ease of machining in the annealed state. This flat stock is used by machinists, toolmakers, and die makers who require a reliable, consistent-dimension bar ready for layout, grinding, and heat treat operations.

This flat stock is suited for fabrication of dies, punches, gauges, jigs, bushings, and other precision tooling components in job shop and production machine shop environments. The bar arrives in the soft-annealed condition, ready for rough and finish machining prior to oil-hardening heat treatment. Its flat geometry makes it a direct starting material for plate-style tooling without requiring initial milling to shape.

Key Features

• AISI Type O1 oil-hardening tool steel, annealed condition
• Thickness tolerance of plus or minus 0.001 inches for precise stock removal planning
• Width tolerance of plus 0.005 inches, minus 0.000 inches
• Length tolerance of plus 0.25 inches, minus 0.000 inches
• Squareness: edge 0.003 inches per inch of thickness, end 0.004 inches per inch of thickness
• Square tolerance of plus or minus 0.003 inches

Compatibility

Designed as a standard AISI O1 oil-hardening flat stock suitable for general toolmaking, die making, and precision machining applications requiring an oil-quench hardenable tool steel in flat bar form.

Installation Notes

Machining and heat treatment of O1 tool steel flat stock should be performed by qualified toolmakers or machinists familiar with tool steel processing procedures. Follow the material supplier and applicable shop safety guidelines when performing oil-quench hardening operations, including proper fire suppression equipment and ventilation. Always allow the bar to reach a stable temperature before precision layout or grinding to avoid measurement error from thermal expansion.