5/8″ X 5/8″ X 18″ Starrett Precision Ground Flat Stock AISI O-1 Oil Hardened Steel 54172 Time-Limited

5/8″ X 5/8″ X 18″ Starrett Precision Ground Flat Stock | AISI O-1 Oil Hardened Steel | 54172 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 surfaces for flatness and squareness, reducing setup time in milling, drilling, or shaping operations.

Tool steel characteristics with oil hardening provides solid wear resistance and machinability for repetitive tooling and fixtures.

Single-piece construction ensures consistent dimensions along the length, minimizing workholding adjustments.

Versatile form factor suitable for toolmaking, dies, jig stock, and custom fabrications.

Post-processing ready can be ground, drilled, or milled to final tolerances; compatible with standard shop workflows.

Specifications

Material: AISI O-1 Oil Hardened Tool Steel

Type: Precision Ground Flat Stock

Size: 5/8 inch x 5/8 inch x 18 inch

Heat Treatment: Oil hardened

Dimensions: 5/8 inch x 5/8 inch x 18 inch

Finish: Precision ground surfaces

Applications

Machining shops and contract manufacturers for fixture stock and die work

Tool and die making for forming tools and core blanks

Prototype and custom fabrication shops for quick-build fixtures

Knife and blade makers for base stock and blanks

Metalworking education labs for practice in machining and heat treatment fundamentals