1/4″ X 5 1/2″ X 18″ Starrett Precision Ground Flat Stock AISI O-1 Oil Hardened Steel 54083 Top Pick

1/4″ X 5 1/2″ X 18″ Starrett Precision Ground Flat Stock | AISI O-1 Oil Hardened Steel | 54083 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.

Flat, precision-ground faces ensure squareness and consistent stock for fixturing

Oil hardened heat treatment provides wear resistance and dimensional stability under machining loads

Rectangular cross section supports use as tool blanks for custom dies, templates, and gauges

Stable material suitable for filing, drilling, and milling with minimal distortion

Specifications

Material: AISI O-1 oil hardened steel

Finish/Process: Precision ground flat stock

Thickness: 1/4 inch

Width: 5 1/2 inches

Length: 18 inches

Dimensions: 1/4 inch thick x 5 1/2 inches wide x 18 inches long

Form: Precision ground flat stock (one piece)

Applications

Machine shops and metal fabrication shops for custom blanks, fixtures, and tooling components

Die making and tool creation, including forming dies and alignment gauges

Prototype shops and rapid fabrication environments requiring reliable flat stock for testing fits and clearances

Educational workshops and maker spaces for precision metalworking projects