Drill Rod Tool Steels 66804 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 66804 is an O1 oil-hardening tool steel flat stock bar measuring 0.125 inches thick, 1 inch wide, and 36 inches long. Conforming to AISI Type O1 specification, this flat stock is used by machinists, toolmakers, and metal fabricators who need a precision-ground, hardenable steel blank ready for layout, grinding, or machining into punches, dies, gauges, and cutting tools. At 1.29 pounds per bar, it is easy to handle at the bench. Thickness tolerance is held to plus or minus 0.001 inches, giving toolmakers a reliable starting dimension without additional surface grinding.

O1 tool steel flat stock is a standard material in job shops, tool-and-die operations, and maintenance departments. It is used wherever a hardenable, oil-quench steel blank is required for fabricating custom tooling, jigs, fixtures, blades, or wear parts. The 36-inch length accommodates multiple blanks per bar and suits typical surface grinder and mill table capacities found in small to mid-size shops.

Key Features

• AISI Type O1 oil-hardening tool steel for reliable through-hardness after oil quench
• Thickness held to plus or minus 0.001 inches for consistent starting stock
• Width tolerance of plus 0.005 inches, minus 0.000 inches provides a known oversize allowance for finish grinding
• Length tolerance of plus 0.5 inches allows for squaring and facing cuts
• Squareness held to 0.003 inches on edges and 0.004 inches per inch of thickness on ends
• 36-inch bar length suits common bench and machine lengths in tool-and-die applications

Compatibility

Designed as a standard AISI O1 oil-hardening tool steel flat bar suitable for general toolmaking, die-making, and custom fabrication applications requiring a hardenable cold-work tool steel in flat stock form.

Installation Notes

Cutting, grinding, and machining of tool steel flat stock should be performed by qualified machinists or toolmakers using appropriate personal protective equipment. Heat-treating operations including hardening and tempering should follow recognized procedures for AISI O1 tool steel and should be performed with properly calibrated equipment. Deburr all cut edges before handling. Consult applicable shop safety standards when operating grinders, saws, or mills on tool steel.