Drill Rod Tool Steels 58008 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 58008 is an O1 oil-hardening tool steel flat stock bar intended for toolmaking, die making, jig fabrication, and precision machining applications. It measures 1 inch thick, 4.5 inches wide, and 36 inches long, with a finished weight of 45.9 pounds. Manufactured to AISI Type O1 oil-hardening specification, this flat stock holds a thickness tolerance of plus or minus 0.001 inches, making it suitable for applications where dimensional accuracy is critical before and after heat treatment. Machinists, tool and die makers, and industrial fabricators typically work with this material.

O1 tool steel flat stock at this size is commonly used in the production of punches, dies, gauges, cutting tools, and similar precision components where a stable, machinable steel is required prior to oil quenching and tempering. The 36-inch length provides adequate stock for multiple blanks depending on finished part geometry. This flat stock is suited to both job shop and production toolroom environments working on mold bases, forming dies, and fixture components.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable heat treat response
• Thickness tolerance of plus or minus 0.001 inches for precision pre-grind fitment
• Width tolerance of plus 0.005 inches, minus 0.000 inches
• Length tolerance of plus 0.5 inches, minus 0.000 inches
• Squareness held to 0.003 inches on edges and 0.004 inches per inch of thickness on ends
• Ready-to-machine condition suitable for toolroom and production applications

Compatibility

Designed as a standard AISI O1 oil-hardening tool steel flat stock for general toolroom use where O1 grade material at 1 inch thick by 4.5 inches wide by 36 inches long is specified.

Installation Notes

Cutting, grinding, and drilling of tool steel flat stock should be performed with appropriate metalworking equipment and tooling rated for hardened or semi-hardened steel. Always wear appropriate PPE including eye protection and gloves when cutting or grinding. Heat treatment, including oil quenching and tempering, should be performed by a qualified heat treater following AISI O1 recommendations. Allow material to reach ambient temperature before precision measurement after any thermal operation.