Starrett 54328 AISI O1 Tool Steel Flat Stock 5/32" x 1-1/2" x 36"

The Starrett 54328 is a precision-ground flat stock made from AISI O1 oil-hardening tool steel, measuring 5/32" thick by 1-1/2" wide by 36" long. This high-quality tool steel is ideal for manufacturing cutting tools, gauges, jigs, fixtures, and precision components that require excellent dimensional stability.

Key Features:

• AISI O1 oil-hardening tool steel for superior machinability and hardening characteristics
• Precision-ground flat stock with tight dimensional tolerances
• Excellent dimensional stability during heat treatment minimizes warping and distortion
• Ideal for intricate work and thin-section applications with minimal risk of cracking
• Can be hardened to 57-62 HRC for wear resistance and edge retention
• Machines easily in the annealed condition for efficient fabrication

O1 tool steel is a versatile, general-purpose tool steel that offers an excellent balance of toughness, wear resistance, and ease of heat treatment. It is widely used in toolmaking, die work, and precision fabrication where dimensional accuracy is critical. The oil-quenching process provides predictable hardening with minimal size change, making it suitable for complex geometries and close-tolerance work.