Drill Rod Tool Steels 812560 O1 Tool Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 812560 is an O1 oil-hardening tool steel flat stock bar intended for toolmaking, die work, punches, gauges, and precision machining applications. Manufactured to AISI Type O1 specification, this flat stock measures 9/32 inches thick by 9/32 inches wide by 36 inches long and weighs 0.82 pounds. Thickness tolerance is held to plus or minus 0.001 inches, making it suitable for close-tolerance work where dimensional consistency directly affects finished part accuracy. Machinists, toolmakers, and industrial maintenance professionals are the primary end users of this material.

O1 tool steel flat stock in this size range is commonly used in shops producing small dies, punches, blades, and custom tooling fixtures. The 36-inch length allows multiple blanks to be cut from a single piece, reducing material waste on short-run jobs. Its oil-hardening characteristic means it can be heat-treated in a controlled shop environment without the distortion risk associated with water-hardening grades. This stock is appropriate for both prototype tooling and low-to-medium volume production work.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable heat-treat response
• Thickness tolerance of plus or minus 0.001 inches for close-tolerance applications
• Width tolerance of plus 0.005 inches to minus 0.000 inches
• Length tolerance of plus 0.5 inches to minus 0.000 inches
• Square tolerance of plus or minus 0.003 inches across cross-section
• 36-inch length provides flexibility for multiple blanks per bar

Compatibility

Designed as a standard O1 oil-hardening tool steel flat stock suitable for general toolmaking, die-making, and precision machining applications requiring AISI Type O1 material specification.

Installation Notes

Cutting and machining of tool steel flat stock should be performed by qualified machinists or toolmakers using appropriate cutting fluids and tooling rated for hardened or semi-hard steel. Heat treatment to full hardness should follow AISI O1 oil-quench procedures and is typically performed before final grinding to finished dimensions. Always wear appropriate PPE when cutting, grinding, or heat-treating tool steel stock. Deburr all edges before handling finished blanks.