Starrett 54417 Oil-Hardening Flat Stock 3/8" x 4" x 36" AISI O1 Tool Steel

The Starrett 54417 is a precision flat stock bar made from AISI O1 oil-hardening tool steel, measuring 3/8" thick x 4" wide x 36" long. This high-quality tool steel is designed for machinists, toolmakers, and manufacturers who require dimensionally stable material for precision work.

Key Features:

• AISI O1 oil-hardening tool steel composition for excellent wear resistance and toughness
• Dimensionally stable material ideal for intricate work and thin sections
• Minimal risk of cracking during heat treatment and machining operations
• Precision ground surfaces for accurate machining and fabrication
• Versatile flat stock suitable for custom tooling, dies, punches, and gauges

O1 tool steel is known for its machinability in the annealed state and ability to achieve high hardness (up to 62 HRC) after proper heat treatment. This flat stock is supplied in the annealed condition, ready for machining to your specifications. After machining, it can be oil quenched and tempered to achieve the desired hardness and performance characteristics for demanding applications.