Drill Rod Tool Steels 66809 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 66809 is an O1 oil-hardening tool steel flat stock bar suited for toolmaking, jig building, die making, and precision machining applications. Manufactured to AISI Type O1 material specification, this flat stock measures 0.125 inches thick, 3 inches wide, and 36 inches long, with a weight of 3.87 pounds per piece. O1 tool steel offers good machinability in the annealed state and hardens predictably with an oil quench, making it a standard choice for shop-floor tooling components requiring wear resistance after heat treatment.

This flat stock is used in machine shops, tool and die operations, and fabrication environments where close-tolerance blanks are needed for punches, dies, gauges, blades, and similar components. The 36-inch length allows multiple blanks to be cut from a single piece. Thickness tolerance is held to plus or minus 0.001 inches, width tolerance is plus 0.005 inches and minus 0.000 inches, and length tolerance is plus 0.5 inches. These tolerances support direct use in precision layout and machining without additional surface grinding in most applications.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable hardening response
• Thickness held to plus or minus 0.001 inches for tight dimensional control
• Width tolerance of plus 0.005 inches and minus 0.000 inches
• Squareness: edge 0.003 inches, end 0.004 inches per inch of thickness
• 36-inch length with plus 0.5-inch length tolerance for flexible blank cutting
• Weighs 3.87 pounds per piece

Compatibility

Designed as a standard O1 oil-hardening flat stock blank suitable for tool and die applications, precision machining, and fabrication work requiring AISI Type O1 tool steel material.

Installation Notes

Machining and heat treatment of tool steel flat stock should be performed by qualified machinists or tool and die makers. Always anneal the stock if additional machining is needed before hardening. Follow established shop safety procedures when cutting, grinding, or heat treating tool steel, including use of appropriate PPE. Consult applicable material data sheets for quench media requirements and tempering temperatures before performing any heat treat operations.