Drill Rod Tool Steels 57955 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 57955 is an O1 oil-hardening tool steel flat stock bar intended for toolmaking, die work, jigs, fixtures, and precision machining applications. Conforming to AISI Type O1 material specification, this flat stock measures 0.5 inches thick, 3 inches wide, and 36 inches long, with a weight of 15.47 pounds. Thickness tolerance is held to plus or minus 0.001 inches, making it suitable for applications where dimensional accuracy before hardening is critical. Machinists, tool-and-die makers, and metalworking shops are the primary users of this material.

O1 tool steel in flat stock form is commonly used in residential and commercial machine shops for the fabrication of punches, dies, gauges, knives, and general tooling. The 36-inch length provides a workable blank for cutting multiple tooling pieces from a single bar. The 3-inch width and 0.5-inch thickness suit medium-duty tooling profiles. This stock is supplied in the annealed condition and requires oil quenching during the hardening process to achieve final working hardness.

Key Features

• AISI Type O1 oil-hardening tool steel - suitable for heat treatment via oil quench
• Thickness held to plus or minus 0.001 inches for precise pre-hardening stock removal calculations
• Width tolerance of plus 0.005 inches, minus 0.000 inches maintains consistent material width
• Length tolerance of plus 0.5 inches ensures full usable length per piece
• Squareness tolerance of plus or minus 0.003 inches on edges supports accurate layout and setup
• Single-piece minimum order quantity - no bulk commitment required

Compatibility

Designed as a standard O1 oil-hardening tool steel flat stock for general toolmaking and machining applications where AISI Type O1 material specification is required.

Installation Notes

This material is typically worked by machinists and tool-and-die tradespeople using conventional milling, grinding, and sawing equipment. All cutting and grinding operations should be performed before heat treatment. Oil hardening requires controlled furnace heating followed by an oil quench - this process should be performed by qualified heat-treat personnel following established metallurgical procedures. Secure workpieces properly during machining to maintain dimensional tolerances.