Starrett 53931 Precision Ground Flat Stock 1/64" x 3" x 18" AISI O1 Tool Steel

The Starrett 53931 is a precision ground flat stock made from AISI O1 oil-hardening tool steel, measuring 1/64" thick x 3" wide x 18" long. This high-quality flat stock is ideal for precision toolmaking, gage construction, and manufacturing applications requiring exceptional dimensional stability.

Key Features:

• AISI O1 oil-hardening tool steel for superior hardness and wear resistance
• Precision ground to tight tolerances for accurate, intricate work
• Dimensionally stable material minimizes warping during heat treatment
• Excellent for thin sections and delicate applications with minimal risk of cracking
• Ideal for gages, dies, punches, cutting tools, and precision instruments
• Can be hardened to Rockwell C 57-62 when properly heat treated

O1 tool steel is the most widely used oil-hardening tool steel, offering excellent machinability in the annealed condition and predictable hardening characteristics. The precision ground finish ensures consistent thickness and flatness, making this flat stock suitable for critical measurement and tooling applications where accuracy is paramount.