Limited Offer 5/16″ X 3″ X 18″ Starrett Precision Ground Flat Stock AISI D-2 Air Hardened Steel 69170

5/16″ X 3″ X 18″ Starrett Precision Ground Flat Stock | AISI D-2 Air Hardened Steel | 69170 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 edges and faces for square, repeatable setups in milling, drilling, and slotting operations.

High wear resistance and edge retention from AISI D-2 tool steel; suitable for repeated stamping, blanking, and forming tasks.

Flat stock form provides a ready-to-machine base for fixtures, gauges, and die components.

Air hardened profile enables strong, stable performance without oil hardening; compatible with standard heat treatment workflows to tailor hardness after fabrication.

Non-stainless steel; store in a dry environment to minimize corrosion risk.

Specifications

Thickness: 5/16 inch

Width: 3 inch

Length: 18 inch

Material: AISI D-2 air hardened steel

Finish: Precision ground

Weight: approximately 4.8 pounds (2.2 kilograms)

Physical form: solid, rectangular flat stock with flat, parallel faces

Machining readiness: compatible with common tooling and standard machining speeds and feeds for tool steel

Applications

Tooling and die making; stamping, blanking, and forming in metalworking

Metal fabrication shops and machine shops that require durable base stock for fixtures and gauges

Automotive tooling and components manufacturing

Aerospace tooling and high-wear fixture applications

Prototype shops and custom fixture builders pursuing repeatable, flat stock substrates