Drill Rod Tool Steels 57989 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 57989 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die work, jig construction, and precision machining applications. It measures 0.75 inches thick, 5 inches wide, and 36 inches long, and weighs 38.66 pounds. Manufactured to AISI Type O1 specification, this flat stock offers tight dimensional tolerances, making it well suited for applications where consistent sizing directly affects finished part accuracy. Licensed machinists, tool-and-die makers, and metalworking shops are the primary users of this material.

This flat stock is used in the fabrication of punches, dies, gauges, and cutting tools in both job-shop and production environments. Its oil-hardening characteristic makes it appropriate where controlled heat treatment is required to achieve final hardness without the distortion risk associated with water-hardening grades. The 36-inch length is a standard mill-cut size suitable for direct use or further cutting to finished blank dimensions.

Key Features

• AISI Type O1 oil-hardening tool steel for controlled heat treatment response
• Thickness tolerance of plus or minus 0.001 inches for consistent stock sizing
• Width tolerance of plus 0.005 inches, minus 0.000 inches
• Length tolerance of plus 0.5 inches
• Squareness: edge 0.003 inches per inch of thickness, end 0.004 inches per inch of thickness
• Ready-to-use mill flat stock at 0.75 inches thick by 5 inches wide by 36 inches long

Compatibility

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

Installation Notes

Cutting, grinding, and heat treatment of tool steel should be performed by qualified machinists or tool-and-die makers using appropriate equipment. Follow the material supplier and AISI guidelines for preheating, hardening, and tempering O1 tool steel to achieve the intended hardness range. Always use proper personal protective equipment when cutting or grinding. Inspect stock dimensions against job tolerances before beginning layout or machining operations.