Starrett 54034 O1 Tool Steel Flat Stock 5/32x2x18 in

Product Description

The STARRETT 54034 is an O1 oil-hardening tool steel flat stock bar intended for toolmakers, machinists, and die makers who need a precision-ground blank ready for further machining or heat treatment. Conforming to AISI Type O1 specification, this flat stock measures 5/32 inches thick, 2 inches wide, and 18 inches long. Thickness and squareness tolerances are held to plus or minus 0.001 inches, making it suitable for applications where dimensional accuracy before hardening is critical. At 1.59 pounds, the piece is sized for bench-scale tooling work.

O1 tool steel flat stock in this size is commonly used in tool and die shops, maintenance machining environments, and precision fabrication operations. Typical applications include punches, dies, gauges, cutting tools, jigs, and fixtures. The 18-inch length provides enough stock to cut multiple blanks from a single piece. This item ships as a single bar and is sold individually with a minimum order quantity of one.

Key Features

• AISI Type O1 oil-hardening tool steel for reliable heat-treat response
• Thickness tolerance of plus or minus 0.001 inches for close-tolerance blanks
• Width tolerance of 0.000 to minus 0.005 inches for consistent fit in tooling slots
• Length tolerance of plus 0.250 inches, zero minus for full usable length
• Squareness held to 0.003 inches per inch on all edges
• Ready for machining, grinding, or direct heat treatment without additional conditioning

Compatibility

Designed as a general-purpose O1 tool steel flat stock blank suitable for tool and die applications requiring AISI Type O1 oil-hardening material in 5/32 x 2 x 18 inch dimensions.

Installation Notes

Cutting, grinding, and heat treatment of tool steel flat stock should be performed by qualified machinists or toolmakers following established shop safety practices. Secure the workpiece properly before any machining operation. Heat treatment to full hardness requires controlled quenching in oil followed by appropriate tempering — consult AISI O1 heat-treat guidelines for cycle parameters. Avoid grinding dry without adequate coolant, as localized overheating can affect the metallurgical properties of the steel.