Drill Rod Tool Steels 57871 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 57871 is an O1 oil-hardening tool steel flat stock bar used in toolmaking, die making, jig fabrication, and precision machining applications. Manufactured to AISI Type O1 material specification, this flat stock measures 3/32 inches thick, 2 inches wide, and 36 inches long, weighing 1.94 pounds. O1 tool steel is widely specified for its excellent machinability in the annealed state and its ability to achieve high hardness through an oil-quench heat treat cycle. Machinists and tool and die makers rely on this grade when dimensional stability after hardening is a priority.

This flat stock is suited for fabricating punches, dies, gauges, cutting tools, and fixtures in both job shop and production environments. The annealed condition allows cutting, drilling, milling, and grinding before hardening. Stock dimensions make it a practical starting blank for tool room work where precise thickness and width tolerances are required. It is appropriate for small-batch and one-off tooling production across manufacturing and maintenance operations.

Key Features

• AISI Type O1 oil-hardening tool steel for excellent machinability and good wear resistance after hardening
• Thickness tolerance of plus or minus 0.001 inches for close dimensional control
• Width tolerance of plus 0.005 to minus 0.000 inches
• Length tolerance of plus 0.5 inches
• Squareness: edge 0.003 inches, end 0.004 inches per inch of thickness
• Ready-to-machine annealed flat bar - suitable for grinding to final size before heat treatment

Compatibility

Designed as a standard O1 oil-hardening tool steel flat stock blank for use in tool and die making, fixture fabrication, and general machine shop applications requiring AISI Type O1 material specification.

Installation Notes

Cutting and machining should be performed in the annealed state prior to heat treatment. A licensed tool and die maker or qualified machinist should perform oil-quench hardening and tempering in accordance with established AISI O1 heat treat guidelines. Use appropriate personal protective equipment when machining tool steel, and ensure grinding operations use coolant to prevent surface burning. Verify final hardness with a calibrated Rockwell hardness tester after heat treatment.