Drill Rod Tool Steels 57947 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 57947 is an O1 oil-hardening tool steel flat stock bar measuring 7/16 inches thick, 1-1/2 inches wide, and 36 inches long. Conforming to AISI Type O1 material specification, this flat stock is supplied in the annealed condition, ready for machining, grinding, and finishing before oil-quench hardening. It is a standard choice for toolmakers, machinists, and die shops fabricating punches, dies, gauges, and cutting tools. The tight thickness tolerance of plus or minus 0.001 inches supports precision layout and machining work where consistent stock dimensions are critical to finished-part accuracy.

O1 tool steel flat stock in this size is suited for light to medium tooling applications in job shops, maintenance departments, and production tool rooms. Typical uses include blanking dies, form punches, jigs, fixtures, and gauging components. The 36-inch length allows multiple blanks to be cut from a single piece, reducing material waste. This stock is appropriate for both small-batch custom tooling and prototype work where dimensional consistency and machinability are priorities.

Key Features

• AISI Type O1 oil-hardening tool steel for reliable through-hardening in oil quench
• Thickness tolerance of plus or minus 0.001 inches for precision machining applications
• Width tolerance of plus 0.005 inches, minus 0.000 inches ensures stock is never undersize
• Length tolerance of plus 0.5 inches provides full usable material with no short-cut risk
• Squareness held to 0.003 inches on edges and 0.004 inches per inch of thickness on ends
• 36-inch length supports multi-blank yield from a single bar

Compatibility

Designed as a standard O1 oil-hardening tool steel flat bar suitable for general toolmaking, die making, and precision machining applications requiring AISI Type O1 material specification.

Installation Notes

Cutting and machining of tool steel flat stock should be performed by qualified machinists using appropriate carbide or high-speed steel tooling. O1 steel must be properly stress-relieved and oil-quench hardened by a qualified heat treater following AISI O1 guidelines before use in load-bearing or cutting applications. Always use eye and hand protection when cutting or grinding tool steel. Follow shop safety protocols for handling sharp-edged bar stock.