5/16″ X 4″ X 18″ Starrett Precision Ground Flat Stock AISI D-2 Air Hardened Steel 69171 Save Now

5/16″ X 4″ X 18″ Starrett Precision Ground Flat Stock | AISI D-2 Air Hardened Steel | 69171 is Starrett precision ground flat stock, supplied ground flat, square and parallel in aisi d-2 air hardened steel so it goes straight into layout, fixturing and machining work without further surfacing.

Precision ground flat stock suitable for die work, blanking, and tooling where flatness matters.

AISI D-2 tool steel provides high wear resistance and edge retention for repeated machining tasks.

Wide four inch face improves stability during clamping, milling, and grinding operations.

Long eighteen inch length supports multiple parts or longer tooling setups; can be cut to shorter lengths as needed.

Single piece stock eliminates joint lines that could affect flatness or alignment.

Specifications

Material: AISI D-2 air hardened steel

Finish: Precision ground

Thickness: 5/16 inch

Width: 4 inches

Length: 18 inches

Heat treatment: Air hardened

Dimensions: 5/16 inch thickness x 4 inches width x 18 inches length

Surface finish: Precision ground

Applications

Die making and stamping shops for tooling stock and die plates

Tooling manufacturers and precision machining shops

Metal forming and blanking operations requiring flat stock

Mold, fixture, and jig fabrication projects

Repair and refurbishing of tooling where a hard, wear resistant stock is needed