Big Sale 5/16″ X 2 1/2″ X 36″ Starrett Precision Ground Flat Stock AISI O-1 Oil Hardened Steel 54398

5/16″ X 2 1/2″ X 36″ Starrett Precision Ground Flat Stock | AISI O-1 Oil Hardened Steel | 54398 is Starrett precision ground flat stock, supplied ground flat, square and parallel in aisi o-1 oil hardened steel so it goes straight into layout, fixturing and machining work without further surfacing.

Two precision ground faces provide flatness and parallelism for reliable setup in machining, fixturing, and gauging tasks.

AISI O-1 steel with oil hardening offers predictable machinability and a heat-treatable baseline for custom tooling, dies, and fixtures.

Rectangular flat stock sized for straightforward cutting, shaping, and finishing without additional preparation.

Ideal for building custom jigs, workholding fixtures, gauges, and prototype components where precise stock dimensions matter.

One piece per package ensures a full-length blank ready for processing into final parts.

Specifications

Material: AISI O-1 oil hardened steel

Type: Precision ground flat stock

Thickness: 5/16 inch

Width: 2 1/2 inches

Length: 36 inches

Finish: Precision ground faces

Form: Rectangular flat stock

Applications

Machine shops and metal fabrication facilities for fixture construction, tool making, and prototyping

Tool and die shops, stamping, and press brake setups requiring stable, machinable stock

Educational laboratories and research environments working on custom tooling or fabrication projects