Drill Rod Tool Steels 57859 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 57859 is an O1 oil-hardening tool steel flat stock bar used in precision machining, toolmaking, and die-making applications. Conforming to AISI Type O1 material specification, this flat stock measures 1.5 inches thick, 3.5 inches wide, and 18 inches long, with a weight of 26.78 pounds. O1 tool steel is a general-purpose oil-hardening grade valued for its dimensional stability during heat treatment and its ability to hold a fine, sharp edge after hardening and tempering. Machinists, tool-and-die makers, and metalworking professionals work with this material to fabricate punches, dies, gauges, and cutting tools.

This flat stock is suited for job-shop and production toolroom use where close-tolerance raw material is required prior to machining and heat treatment. The pre-cut 18-inch length and finished flat form reduce prep time on the milling machine or surface grinder. It is appropriate for both small-batch toolmaking and prototype work in manufacturing and fabrication environments where AISI O1 is a specified material grade.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable heat-treat response
• Flat stock form: 1.5 inches thick x 3.5 inches wide x 18 inches long
• Thickness tolerance of plus or minus 0.001 inches for close-tolerance stock
• 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

Compatibility

Designed as a standard AISI Type O1 oil-hardening tool steel flat stock suitable for toolroom, die-making, and precision machining applications requiring pre-cut flat bar stock in this size range.

Installation Notes

Tool steel flat stock is worked by qualified machinists and tool-and-die makers using conventional milling, grinding, and turning equipment. All heat-treating operations including hardening and tempering should follow established procedures for AISI O1 tool steel and be performed by qualified personnel. Proper personal protective equipment including eye protection and cut-resistant gloves should be used when handling and cutting tool steel bar stock. Verify final dimensions with calibrated measuring instruments after any machining operations.