Drill Rod Tool Steels 809329 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 809329 is an O1 oil-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who require tight-tolerance stock for punches, dies, gauges, and precision fixtures. Conforming to AISI Type O1 material specification, this flat bar measures 3/64 inches thick by 2-1/2 inches wide by 18 inches long and weighs approximately 0.6 pounds. Thickness tolerance is held to plus or minus 0.001 inches, making it suitable for applications where dimensional control before hardening is critical. O1 tool steel is known for its good machinability in the annealed state and its ability to achieve high hardness after oil quench.

This flat stock is used in machine shops, tool and die facilities, and maintenance departments for fabricating small cutting tools, form tools, jigs, and wear parts. The 18-inch length provides enough material for multiple small workpieces or a single longer component. Because the bar is supplied in the annealed condition, it can be machined, ground, and fitted to size before final hardening and tempering. Typical end users are toolmakers, moldmakers, and precision machinists working in both job shop and production environments.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable hardening response in oil quench
• Thickness tolerance of plus or minus 0.001 inches for close-tolerance work
• Width tolerance of plus 0.005 inches, minus 0.000 inches
• Length tolerance of plus 0.250 inches for consistent stock sizing
• Squareness held to 0.003 inches on edges and 0.004 inches per inch of thickness on ends
• Supplied in annealed condition for ease of machining and grinding prior to heat treatment

Compatibility

Designed as a standard AISI Type O1 oil-hardening tool steel flat bar suitable for general toolmaking, die work, and precision fixture applications where oil-quench steel stock is required.

Installation Notes

Machining and grinding of O1 tool steel flat stock should be performed by a qualified machinist or toolmaker using appropriate cutting tools and coolant to avoid work hardening the surface before heat treatment. Heat treatment including hardening and tempering should be performed by a qualified heat treater following established procedures for AISI O1 tool steel. Always wear appropriate personal protective equipment when cutting, grinding, or handling tool steel stock. Inspect dimensions after any grinding operation to confirm tolerances are maintained before committing to heat treatment.