Drill Rod Tool Steels 839862 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 839862 is an O1 oil-hardening tool steel flat stock bar used in precision toolmaking, die making, jig construction, and general machining applications. Conforming to AISI Type O1 specification, this flat stock measures 0.375 inches thick, 0.625 inches wide, and 18 inches long, with a weight of 1.21 pounds. Thickness tolerance is held to plus or minus 0.001 inches, making it suitable for applications requiring close dimensional control before or after heat treatment. Machinists, tool and die makers, and metalworking shops are the primary users of this material.

O1 tool steel flat stock is commonly used in the fabrication of cutting tools, punches, dies, gauges, and fixtures where moderate wear resistance and good machinability are required in the annealed state. This bar is well suited for low-to-medium production tooling in both job shop and production environments. The oil-hardening characteristic of O1 provides less distortion during heat treatment compared to water-hardening grades, making it a practical choice for precision-ground components that must hold tight tolerances after hardening.

Key Features

• AISI Type O1 oil-hardening tool steel for reduced distortion during heat treatment
• Thickness held to plus or minus 0.001 inches for close dimensional control
• Width tolerance of plus 0.005 inches, minus 0.000 inches
• Length tolerance of plus 0.25 inches
• Squareness: edge 0.003 inches, end 0.004 inches per inch of thickness
• Supplied in annealed condition, ready for machining prior to hardening

Compatibility

Designed as a standard O1 oil-hardening tool steel flat bar suitable for general toolmaking, die making, and precision machining applications requiring AISI Type O1 material specification.

Installation Notes

Cutting and machining should be performed by qualified machinists or tool and die makers using appropriate metalworking equipment. Always follow established heat treatment procedures and safety protocols when hardening O1 tool steel, including proper quenching in oil and appropriate tempering cycles. Grinding and finishing to final tolerance should be completed after hardening and tempering. Personal protective equipment including eye and hand protection is required during all cutting and grinding operations.