Drill Rod Tool Steels 57768 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 57768 is an O1 oil-hardening tool steel flat stock bar measuring 0.375 inches thick, 4.5 inches wide, and 18 inches long. Conforming to AISI Type O1 specification, this flat stock is a versatile, general-purpose tool steel used in the fabrication and machining of dies, punches, gauges, and cutting tools. It ships in an annealed condition, ready for machining, and is intended for oil-quench hardening in the shop. Machinists, toolmakers, and metal fabricators working in job shops, tooling departments, and production environments are the primary end users of this material.

O1 tool steel flat stock in this size range is well suited to applications requiring a balance of wear resistance, toughness, and dimensional stability after heat treatment. Typical uses include blanking dies, forming dies, precision gauges, jigs, fixtures, and hand tools. At 0.375 inches thick and 4.5 inches wide, this bar is sized for medium-format tooling work where close-tolerance blanks are needed without the cost of custom sawing from larger stock.

Key Features

• AISI Type O1 oil-hardening tool steel for controlled, predictable heat treatment response
• Thickness tolerance of plus or minus 0.001 inches for tight dimensional accuracy
• Width tolerance of plus 0.005 inches, minus 0.000 inches
• Length tolerance of plus 0.25 inches
• Squareness tolerance of plus or minus 0.003 inches on edges; 0.004 inches per inch of thickness on ends
• Annealed condition allows direct machining before hardening

Compatibility

Designed as a standard AISI Type O1 oil-hardening tool steel flat bar suitable for general toolmaking, die making, and precision machining applications where oil-quench heat treatment is specified.

Installation Notes

Cutting, grinding, and drilling of O1 flat stock should be performed by qualified machinists or toolmakers using appropriate tooling for hardened or annealed tool steel. Follow established shop safety practices when sawing or grinding, including the use of appropriate coolant and personal protective equipment. Heat treatment to final hardness should be performed by qualified personnel following the material supplier guidelines for O1 oil-quench steel. Allow the material to fully cool before handling post-hardening operations.