Drill Rod Tool Steels 57804 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 57804 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die work, jig fabrication, and precision machining applications. Conforming to AISI Type O1 specification, this flat stock measures 5/8 inches thick, 1-1/4 inches wide, and 18 inches long, with a weight of 4.03 pounds. O1 tool steel offers good machinability in the annealed state and responds predictably to oil-quench hardening, making it a reliable choice for shops producing punches, blades, gauges, and similar tooling components. Machinists and tool-and-die makers are the primary end users.

This flat stock is suited for low-to-medium production tooling in both job shop and in-house maintenance environments. The 18-inch length provides enough material for typical tooling blanks without requiring additional cutoff. The 5/8-inch thickness supports applications requiring a solid cross-section before heat treatment. Stock is supplied in the annealed condition, ready for machining prior to hardening and tempering.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable heat-treat response
• Thickness: 5/8 inches with +/- 0.001 inch tolerance
• Width: 1-1/4 inches with +0.005 / -0.000 inch tolerance
• Length: 18 inches with +0.25 inch tolerance
• Squareness: edge 0.003 inch, end 0.004 inch per inch of thickness
• Supplied annealed for ease of machining before hardening

Compatibility

Designed as a standard AISI O1 oil-hardening flat stock suitable for general toolmaking, die making, and precision machining applications requiring a flat ground or precision-tolerance blank.

Installation Notes

Machining of O1 tool steel should be performed in the annealed condition using appropriate cutting speeds and tooling for high-carbon steel. Heat treatment - including hardening and tempering - should follow AISI O1 guidelines and be performed by qualified personnel using proper quench media and temperature controls. Always wear appropriate PPE when cutting, grinding, or heat-treating tool steel. Consult applicable shop safety standards before performing any thermal processing.