Starrett 54521 AISI O1 Tool Steel Flat Stock 1-1/4" x 2" x 36"

The Starrett 54521 is a precision-ground flat stock made from AISI O1 oil-hardening tool steel, measuring 1-1/4 inches thick by 2 inches wide by 36 inches long. This high-quality tool steel is ideal for toolmakers, machinists, and fabricators who require dimensionally stable material for precision work.

Key Features:

• AISI O1 oil-hardening tool steel composition for excellent hardness and edge retention
• Dimensionally stable during heat treatment, minimizing warping and distortion
• Suitable for intricate work including thin sections with minimal risk of cracking
• Precision-ground flat stock for accurate machining and grinding
• 1-1/4" x 2" x 36" dimensions provide versatile material for custom tooling

O1 tool steel is a preferred choice for making cutting tools, dies, jigs, fixtures, and gauges where dimensional accuracy is critical. The oil-hardening characteristics allow for deep hardening with minimal distortion, making it suitable for both simple and complex tool designs.