Drill Rod Tool Steels 57709 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 57709 is an O1 oil-hardening tool steel flat stock bar used in precision toolmaking, die making, jig fabrication, and general machining applications. Manufactured to AISI Type O1 specifications, this flat stock measures 1/32 inches thick, 6 inches wide, and 18 inches long and weighs 0.97 pounds. Thickness tolerance is held to +/- 0.001 inches, making it suitable for applications that demand tight dimensional control. Machinists, toolmakers, and fabricators work with O1 stock in the annealed condition before hardening and tempering to final hardness using an oil quench process.

This flat stock is well suited for residential and industrial shop use where precision ground or close-tolerance blanks are needed for tools, gauges, punches, dies, and fixtures. The 6-inch width and 18-inch length provide useful blank size for layout and cutting without excessive material removal. The package quantity is 1 piece, making it accessible for single-unit prototype or repair work as well as production runs where individual blanks are ordered to quantity.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable hardening response
• Tight thickness tolerance of +/- 0.001 inches for precision fit-up
• Width tolerance of +0.005 / -0.000 inches maintains oversize allowance for final grinding
• Length tolerance of +0.25 inches provides material for squaring and finishing
• Squareness held to 0.003 inches on edges and 0.004 inches per inch of thickness on ends
• Ships as a single flat bar at 0.97 pounds for straightforward handling and storage

Compatibility

Designed as a standard AISI O1 oil-hardening tool steel flat stock suitable for use in toolmaking, die making, and precision machining applications requiring close-tolerance annealed steel blanks.

Installation Notes

O1 tool steel flat stock is worked by experienced machinists and toolmakers using standard metal-cutting equipment. Before heat treating, confirm the stock is properly supported and secured to prevent deflection during machining. Hardening and tempering O1 steel requires an oil quench and should be performed by personnel familiar with AISI heat treatment procedures for tool steels. Always wear appropriate PPE when cutting, grinding, or heat treating steel stock.