Drill Rod Tool Steels 860155 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 860155 is an O1 oil-hardening tool steel flat stock bar intended for toolmakers, machinists, and metalworking professionals who need a precision-ground blank ready for layout, machining, and heat treatment. Conforming to AISI Type O1 specifications, this flat bar measures 3/64 inches thick, 1-1/2 inches wide, and 36 inches long, with a thickness tolerance of plus or minus 0.001 inches, a width tolerance of plus 0.005 minus 0.000 inches, and a length tolerance of plus 0.5 inches. O1 tool steel offers good machinability in the annealed state and develops high hardness after oil quench, making it a reliable choice for dies, punches, gauges, and cutting tools.

This flat stock is suited for job shops, tool-and-die operations, and maintenance departments that require a pre-cut, dimensionally consistent blank. The 36-inch length allows for multiple part layouts from a single piece. Edge squareness is held to 0.003 inches and end squareness to 0.004 inches per inch of thickness, which supports accurate scribing and layout work without additional dressing on most applications. Single-piece ordering is supported, making it practical for prototype and low-volume tooling work.

Key Features

• AISI Type O1 oil-hardening tool steel for reliable hardness after quench
• Precision thickness tolerance of plus or minus 0.001 inches for consistent stock removal
• Width tolerance of plus 0.005 minus 0.000 inches maintains dimensional control
• Edge squareness held to 0.003 inches for accurate layout and fitment
• 36-inch length accommodates multiple part layouts from one bar
• Annealed condition allows machining before heat treatment

Compatibility

Designed as a general-purpose O1 oil-hardening tool steel flat blank for use in tool-and-die, punch, gauge, and cutting tool fabrication applications wherever AISI Type O1 material is specified.

Installation Notes

Machining and grinding of O1 tool steel should be performed in the annealed condition prior to heat treatment. Oil quenching and tempering should be carried out by a qualified heat treater or experienced toolmaker following established metallurgical practice for AISI O1. Use appropriate personal protective equipment when cutting or grinding tool steel. Verify final dimensions after any thermal processing, as distortion can occur during hardening.