Drill Rod Tool Steels 810372 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 810372 is an O1 oil-hardening tool steel flat bar cut to 36 inches in length, 3/4 inch wide, and 7/64 inch (approximately 0.109 inches) thick. AISI Type O1 is a general-purpose oil-hardening tool steel widely used for tooling, dies, punches, and precision flat stock applications requiring consistent dimensional tolerances. This stock ships annealed and is intended for machinists, toolmakers, and metalworking tradespeople who need reliable pre-cut flat bar ready for further machining, heat treating, and finishing. The material holds a thickness tolerance of plus or minus 0.001 inches, supporting close-tolerance work.

This flat stock is suited for small-format tooling fabrication in machine shops, tool and die shops, and maintenance departments. The 36-inch length provides a full working blank for custom tooling layouts. Its narrow 3/4-inch width and thin 7/64-inch profile make it appropriate for blades, scrapers, small punches, and flat form tools. Professionals working in precision machining or die-making environments will find this stock appropriate for low-to-medium production tooling where oil-hardening grades are specified.

Key Features

• AISI Type O1 oil-hardening tool steel for reliable through-hardening in oil quench
• Thickness tolerance of plus or minus 0.001 inches for close-tolerance tooling work
• Width tolerance of plus 0.005 inches, minus 0.000 inches
• Length tolerance of plus 0.5 inches from nominal 36 inches
• Squareness: edge 0.003 inches, end 0.004 inches per inch of thickness
• Ships as a single piece (quantity of one per package)

Compatibility

Designed as a standard AISI Type O1 oil-hardening tool steel flat bar suitable for general tooling, die, and precision flat stock fabrication applications where O1 grade material is specified.

Installation Notes

Cutting, grinding, and heat treating of tool steel flat stock should be performed by qualified machinists or toolmakers using appropriate personal protective equipment. When heat treating, follow the material supplier's published austenitizing and oil-quench guidelines for AISI O1. Do not attempt to weld O1 tool steel without consulting proper preheat and post-heat procedures, as this grade is not considered freely weldable. Ensure all machining is completed prior to hardening.