Value Collection NS06140305 O1 Tool Steel Flat Stock

Product Description

The VALUE COLLECTION NS06140305 is an O1 oil-hardening tool steel flat stock bar used in precision toolmaking, die making, jig fabrication, and general machining applications. This flat stock measures 5/8 inches thick, 3 inches wide, and 18 inches long, with a weight of 9.67 pounds. Manufactured to AISI Type O1 oil-hardening specification, it offers predictable dimensional accuracy with a thickness tolerance of plus or minus 0.001 inches, making it suitable for work requiring tight stock tolerances before heat treatment. Machinists, tool-and-die makers, and fabricators work with this material when building punches, dies, gauges, and similar tooling components that will be oil-quenched and tempered.

O1 tool steel flat stock is used in both job shop and production toolroom environments. It is well suited for applications where moderate wear resistance, good toughness, and oil-quench hardenability are required. This bar is supplied in the annealed condition, ready for machining to final dimensions before hardening. Typical applications include blanking dies, cutting tools, forming tools, and precision fixtures where dimensional stability during heat treat is a priority.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable hardening response in oil quench
• Tight thickness tolerance of plus or minus 0.001 inches for precision stock preparation
• Width tolerance of plus 0.005 inches, minus 0.000 inches maintains oversize allowance for finish grinding
• Length tolerance of plus 0.25 inches provides machining allowance on cut length
• Squareness held to 0.003 inches at edge and 0.004 inches per inch of thickness at ends
• Supplied in annealed condition, ready for machining prior to heat treatment

Compatibility

Designed as a general-purpose O1 oil-hardening tool steel flat bar for toolroom and machining applications requiring AISI Type O1 material specification.

Installation Notes

Cutting, drilling, and milling should be performed by qualified machinists using appropriate tooling for tool steel in the annealed condition. Heat treatment, including oil quenching and tempering, should be performed by a qualified heat treater following established procedures for AISI O1 tool steel. Handle cut edges with care, as machined tool steel bar stock can present sharp burrs. Personal protective equipment including cut-resistant gloves is recommended when handling.