Drill Rod Tool Steels 66729 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 66729 is an O1 oil-hardening tool steel flat stock bar used in precision machining, toolmaking, and die-making applications. Conforming to AISI Type O1 material specification, this flat stock measures 3/32 inches thick, 3 inches wide, and 18 inches long, with a weight of 1.45 pounds. The tight thickness tolerance of +/- 0.001 inches makes it suitable for applications requiring close dimensional control. Machinists, tool and die makers, and metalworking shops rely on O1 tool steel for its predictable oil-hardening behavior and excellent machinability in the annealed state.

This flat stock is used in the fabrication of punches, dies, gauges, fixtures, jigs, and cutting tools in both job shop and production environments. The 18-inch length provides a practical working blank for a range of toolroom applications. O1 grade tool steel is well suited for applications where moderate toughness and good wear resistance after hardening are required. This piece is supplied in one unit per package and carries a minimum order quantity of one.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable heat treat response
• Thickness tolerance of +/- 0.001 inches for close dimensional control
• Width tolerance of +0.005 / -0.000 inches
• Length tolerance of +0.250 inches
• Squareness: edge 0.003 inches, end 0.004 inches per inch of thickness
• Ready-to-machine flat stock in annealed condition

Compatibility

Designed as a general-purpose O1 oil-hardening tool steel flat stock suitable for toolroom, die-making, and precision machining applications where AISI Type O1 material specification is required.

Installation Notes

Cutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists or tool and die makers using appropriate metalworking equipment. Always follow established shop safety practices, including proper guarding and eye protection when cutting or grinding. Heat treatment should be performed by personnel familiar with O1 oil-hardening procedures and applicable shop safety protocols. Handle edges carefully, as ground flat stock edges may be sharp.