Trusted Brand 9/32″ X 1/2″ X 18″ Starrett Precision Ground Flat Stock AISI O-1 Oil Hardened Steel 54091

This precision ground flat stock is crafted from AISI O-1 oil-hardened steel. Supplied as a single piece with a rectangular cross-section and finished surfaces suitable for tooling and fabrication applications.

Precision ground surfaces on both faces for accurate sizing and minimal machining setup

Rectangular cross-section: 9/32 inch thick by 1/2 inch wide

18 inch length suitable for blanks, bar stock, and fixtures

Single piece construction avoids joints or welds that could introduce distortion

Tool steel; oil-hardened to support subsequent heat treatment and wear resistance

Specifications

Thickness: 9/32 inch

Width: 1/2 inch

Length: 18 inch

Material: AISI O-1 oil-hardened steel

Form: Flat stock, rectangular cross-section

Surface: Precision ground on both faces

Edges: Clean, squared edges for machining

Applications

Machine shops and prototyping labs for custom components, jigs, and fixtures

Die making, blanking, and forming operations that require reliable flat stock with consistent dimensions

Fabrication shops performing milling, drilling, and surface finishing on flat stock material