5/8″ X 3″ X 18″ Starrett Precision Ground Flat Stock AISI O-1 Oil Hardened Steel 54179 Best Choice

5/8″ X 3″ X 18″ Starrett Precision Ground Flat Stock | AISI O-1 Oil Hardened Steel | 54179 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 surfaces for accurate layout, drilling, milling, and finishing operations.

AISI O-1 tool steel grade offers a balanced combination of machinability and hardness, suitable for custom tooling and die work when properly heat treated.

Oil hardened processing provides uniform hardness along the length for predictable machining behavior.

Ideal for fabrication tasks such as jigs, fixtures, blades, shims, and patterns.

Specifications

Dimensions: 5/8 inch thick x 3 inches wide x 18 inches long

Material: AISI O-1 oil hardened steel

Finish/Processing: Precision ground flat stock

Rectangular flat stock bar with uniform cross-section

Supplied as a single piece

Precision-ground surfaces minimize setup time and improve squareness

Applications

Machine shops and metal fabrication facilities

Tooling, die making, and mold shops

Prototyping, product development, and custom fabrication teams

DIY metalworking and hobbyist projects