Same Day Shipping 3/8″ X 8″ X 18″ Starrett Oversize Precision Ground Flat Stock AISI O-1 Oil Hardened Steel 57012

3/8″ X 8″ X 18″ Starrett Oversize Precision Ground Flat Stock | AISI O-1 Oil Hardened Steel | 57012 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.

Precision ground flat faces for accurate squareness in machining and finishing tasks

Single-piece construction minimizes distortion and eliminates joints

Oil-hardened tool steel provides reliable wear resistance and edge stability during shaping and grinding

Oversize 18 inch length enables longer fixtures and extended toolmaking setups

Suitable as stock for custom tooling, jigs, fixtures, patterns, and handcrafted components

Specifications

Material: AISI O-1 oil-hardened tool steel

Form: Flat stock

Thickness: 3/8 inch

Width: 8 inch

Length: 18 inch

Finish: Precision ground faces

Overall dimensions: 3/8 inch thick × 8 inch wide × 18 inch long

Form factor: Rectangular flat bar, single piece

Surface treatment: Machined, precision ground faces; edges squared

Material state: AISI O-1 oil-hardened tool steel

Applications

Machine shops and toolmaking environments for custom tooling, fixtures, and die work

Metal fabrication and prototyping facilities requiring flat stock with tight flatness

Maker spaces and workshop labs for knife making stock, gauge blocks, and reference surfaces