Starrett 54164 O1 Tool Steel Flat Stock 0.5x12x18 in

Product Description

The STARRETT 54164 is an O1 oil-hardening tool steel flat stock blank used in toolmaking, die work, jig fabrication, and precision machining applications. Manufactured to AISI Type O1 specification, this flat stock measures 0.5 inches thick, 12 inches wide, and 18 inches long, with a weight of 30.6 pounds. Thickness tolerance is held to plus or minus 0.001 inches, making it suitable for applications where dimensional consistency matters before hardening. Machinists, toolmakers, and die makers work with O1 flat stock because it responds predictably to oil-quench hardening and offers good wear resistance after heat treatment.

This flat stock is used in tool and die shops, maintenance departments, and precision machine shops for fabricating punches, dies, gauges, jigs, fixtures, and cutting tools. The 12-inch width and 18-inch length provide enough material for medium to large tooling blanks. O1 steel machines well in the annealed state, allowing shops to rough and finish the part before the hardening cycle. This piece is sold as a single unit and is suited to both production and one-off toolmaking tasks.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable heat-treat response
• Thickness tolerance of plus or minus 0.001 inches for consistent stock dimensions
• Length tolerance of plus 0.250 inches, minus 0 inches
• Width tolerance of 0.0000 to 0.0150 inches
• Edge squareness held to 0.003 inches per inch on all edges
• Annealed condition allows conventional machining prior to hardening

Compatibility

Designed as a standard O1 oil-hardening tool steel flat stock blank for use in tool and die fabrication, gauge making, and general precision toolroom applications where AISI O1 material specification is required.

Installation Notes

O1 tool steel flat stock is worked by qualified machinists and toolmakers using conventional milling, grinding, and sawing equipment. All machining should be completed in the annealed state before heat treatment. Oil-quench hardening must be performed by personnel familiar with proper furnace temperatures and quench procedures for O1 tool steel; follow applicable shop safety standards for heat-treating operations. Handle large flat stock sections with appropriate lifting aids given the 30.6-pound weight of this piece.