Drill Rod Tool Steels 839476 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 839476 is an O1 oil-hardening tool steel flat stock bar used in precision toolmaking, die work, and machining applications requiring close dimensional tolerances. Manufactured to AISI Type O1 material specification, this flat bar measures 0.0625 inches thick, 0.25 inches wide, and 36 inches long, with a thickness tolerance of plus or minus 0.001 inches. At 0.16 pounds, it is lightweight and easy to cut to length. Licensed machinists, tool and die makers, and metalworking professionals use O1 flat stock as raw material for punches, dies, blades, and custom tooling components.

O1 oil-hardening tool steel is a general-purpose tool steel suited for applications where moderate wear resistance and good toughness are required after heat treatment. This flat bar is commonly used in toolroom environments, job shops, and production facilities. The 36-inch length provides a practical starting size for most bench and CNC machining operations. The close width and thickness tolerances reduce the amount of stock removal needed before final dimensioning.

Key Features

• AISI Type O1 oil-hardening tool steel material specification
• Thickness tolerance of plus or minus 0.001 inches for precision fitment
• Width tolerance of plus 0.005 inches, minus 0.000 inches
• Length tolerance of plus 0.5 inches
• Squareness held to 0.003 inches on edges and 0.004 inches per inch of thickness on ends
• Ready-to-machine flat bar form requires no additional surface prep before layout

Compatibility

Designed as a standard O1 oil-hardening tool steel flat bar for use in general toolmaking, die making, and precision machining applications requiring AISI Type O1 material specification.

Installation Notes

Cutting and machining of tool steel flat stock should be performed by qualified machinists using appropriate metalworking equipment. O1 tool steel requires oil quenching during heat treatment to achieve full hardness - consult your heat treating specification before processing. Always wear appropriate personal protective equipment when cutting, grinding, or handling tool steel bar stock. Deburr all cut edges before use in tooling assemblies.