Drill Rod Tool Steels 860188 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 860188 is an O1 oil-hardening tool steel flat stock bar intended for toolmaking, die making, jig fabrication, and precision machining applications. Manufactured to AISI Type O1 specification, it measures 3/64 inches thick, 3 inches wide, and 36 inches long, weighing 1.45 pounds. O1 tool steel offers good wear resistance and dimensional stability during oil-quench hardening, making it a reliable choice for flat tooling components, gauges, and punches. Machinists, tool-and-die makers, and fabricators work with this material in both shop and production environments.

This flat stock is suited for applications requiring precise tolerances in the annealed condition before hardening. Typical uses include fabricating blanks for cutting tools, forming dies, wear plates, and fixtures. The stock arrives in a machinable annealed state, ready for profiling, drilling, or grinding prior to heat treatment. It is appropriate for small-batch toolroom work as well as single-piece prototype fabrication, and the 36-inch length provides sufficient stock for multiple blanks from a single bar.

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 consistent stock removal
• Width tolerance of plus 0.005 inches, minus 0.000 inches maintains oversize-safe dimensioning
• Length tolerance of plus 0.5 inches ensures full usable length
• Squareness held to 0.003 inches on edges and 0.004 inches per inch of thickness on ends
• Annealed condition allows machining and grinding before oil-quench hardening

Compatibility

Designed as a general-purpose O1 oil-hardening tool steel flat stock suitable for toolroom, die shop, and precision fabrication use where AISI Type O1 material specification is required.

Installation Notes

Cutting, grinding, and drilling should be performed in the annealed state prior to heat treatment. Heat treatment of O1 tool steel involves oil quenching and should be performed by a qualified heat treater following AISI O1 hardening guidelines. Use appropriate personal protective equipment when cutting or grinding tool steel. Secure stock firmly in a vise or fixture before any machining operation.