Starrett 54448 AISI O1 Precision Ground Flat Stock 1/2" x 4-1/2" x 36"

The Starrett 54448 is a precision ground flat stock bar made from AISI O1 oil hardening tool steel, measuring 1/2" thick x 4-1/2" wide x 36" long. This high-quality tool steel is ideal for manufacturing precision tools, dies, gauges, and fixtures where dimensional stability is critical.

Key Features:

• AISI O1 oil hardening tool steel for superior wear resistance and edge retention
• Precision ground on all sides for tight tolerances and excellent flatness
• Dimensionally stable during heat treatment with minimal distortion
• Excellent machinability for intricate work and thin sections
• Low risk of cracking during hardening operations
• Ideal for cutting tools, punches, dies, gauges, and precision fixtures

O1 tool steel can be hardened to 57-62 HRC and offers an excellent balance of toughness, wear resistance, and ease of heat treatment. The precision ground finish ensures consistent dimensions and reduces machining time for critical applications.