Drill Rod Tool Steels 66829 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 66829 is an O1 oil-hardening tool steel flat stock bar intended for precision toolmaking, die work, and machining applications. Conforming to AISI Type O1 specification, this flat stock measures 0.25 inches thick, 2 inches wide, and 36 inches long, with a weight of 5.16 pounds. Thickness tolerance is held to plus or minus 0.001 inches, making it suitable for applications that demand close dimensional control. Width tolerance is plus 0.005 inches, minus 0.000 inches. Length tolerance is plus 0.5 inches. 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 tool and die shops, machine shops, and maintenance departments for fabricating punches, dies, gauges, jigs, fixtures, and cutting tools. It is appropriate for both prototype and production work where dimensional accuracy and hardenability are required. The 36-inch length allows for single-piece or segmented blanks depending on the application. Machinists and toolmakers working with manual or CNC equipment will find this stock suitable for operations such as milling, grinding, and drilling prior to heat treatment.

Key Features

• AISI Type O1 oil-hardening tool steel construction
• Thickness held to plus or minus 0.001 inches for close-tolerance work
• Width tolerance of plus 0.005 inches, 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
• Good machinability in annealed condition prior to hardening

Compatibility

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

Installation Notes

Machining and heat treatment should be performed by qualified toolmakers or machinists familiar with tool steel handling procedures. O1 tool steel should be hardened by oil quenching following appropriate austenitizing temperatures per standard heat treatment practice. Always allow the stock to reach ambient temperature before precision grinding or finishing operations. Review applicable shop safety procedures for handling and storing tool steel bar stock.