Starrett Oil Hardening Flat Stock

Starrett Oil Hardening Flat Stock is AISI O1 oil hardening tool steel flat stock, also called O1 tool steel bar or precision ground flat stock. It is made for toolmakers, machinists and fabricators who need a dependable, easy-to-machine steel for tooling and fixtures.

Key Features:

• AISI O1 oil hardening tool steel: A general-purpose tool steel with good machinability in the annealed state.
• Heat treatable: Oil quenching hardens it to a high working hardness. This gives good wear resistance and edge retention.
• Precision ground flat stock: Supplied in flat bar form to cut machining time and help hold tight tolerances.
• Dimensional stability: Oil hardening steel distorts less during heat treatment than many water-hardening grades.

Typical Applications:

• Dies, punches and cutting tools
• Gauges, jigs and fixtures
• Shop tooling, knife blanks and wear parts

Starrett is a long-established American maker of precision tools and measuring equipment. Its flat stock is a practical choice for tool room and shop work where accuracy and repeatable results matter.