Authentic 3/4″ X 3/4″ X 18″ Starrett Precision Ground Flat Stock AISI O-1 Oil Hardened Steel 54187

3/4″ X 3/4″ X 18″ Starrett Precision Ground Flat Stock | AISI O-1 Oil Hardened Steel | 54187 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 faces provide accurate flatness and squareness for reliable fixturing

AISI O-1 oil hardened steel offers good hardness and wear resistance for tool blanks and prototypes

Square cross-section simplifies alignment in jigs, clamps, and fixtures

Machinable with standard tooling for milling, drilling, grinding, and shaping operations

Consistent size tolerance across the length supports repeatable fabrication workflows

Specifications

Material: AISI O-1 oil hardened tool steel

Cross-section: 3/4 inch by 3/4 inch

Length: 18 inch

Finish: Precision ground flat stock

Shape: Square cross-section bar with uniform geometry

Dimensions: 3/4 inch by 3/4 inch cross-section, 18 inch length

Surface: Flat stock ready for secondary operations such as filing or heat treatment

Applications

Toolmaking blanks for punches, dies, and custom tooling

Machining fixtures, jigs, and alignment blocks for fabrication shops

Knife and blade blank stock for workshop projects and prototyping

Replacement stock for learnings in heat treatment and edge retention