Starrett 54017 O1 Tool Steel Flat Stock 1/8x12x18 in

Product Description

The STARRETT 54017 is an O1 oil-hardening tool steel flat stock blank used in precision toolmaking, die work, jig fabrication, and custom cutting tool production. Conforming to AISI Type O1 material specification, this flat stock measures 0.125 inches thick, 12 inches wide, and 18 inches long, and weighs 7.66 pounds. Thickness tolerance is held to plus or minus 0.001 inches, making it suitable for applications where close dimensional control is required before hardening. Machinists, tool-and-die makers, and fabricators select O1 flat stock for its predictable oil-quench response and good dimensional stability through the hardening process.

This flat stock is used in machine shops, tool rooms, and fabrication facilities for producing custom punches, dies, gauges, fixtures, and other precision tooling components. It is appropriate for both prototype and short-run production work where a through-hardening oil-quench steel is specified. The 12-inch width and 18-inch length provide ample stock for layout and rough machining prior to heat treatment. This item ships as a single piece and is suitable for cutting, milling, grinding, and drilling in the annealed condition before hardening.

Key Features

• AISI Type O1 oil-hardening tool steel for predictable heat treat response
• Thickness: 0.125 inches with plus or minus 0.001 inches tolerance
• Width: 12 inches with tolerance of minus 0.000 to minus 0.015 inches
• Length: 18 inches with plus 0.250 inches length tolerance
• Squareness: edge squareness held to 0.003 inches per inch on all edges
• Single-piece package quantity with no minimum order beyond one piece

Compatibility

Designed as a general-purpose O1 oil-hardening tool steel flat blank suitable for tool room and die shop applications requiring AISI Type O1 material specification.

Installation Notes

Cutting, machining, and grinding of tool steel flat stock should be performed by qualified machinists or tool-and-die makers using appropriate metalworking equipment. All rough machining and finishing operations should be completed in the annealed condition prior to heat treatment. Heat treating O1 steel requires controlled atmosphere or salt bath equipment and should follow established metallurgical procedures for oil quenching. Proper personal protective equipment including eye protection and heat-resistant gloves is required during any cutting or heat treatment operations.