5/8″ X 5″ X 18″ Starrett Oversize Precision Ground Flat Stock AISI A-2 Air Hardened Steel 57621 Luxury

5/8″ X 5″ X 18″ Starrett Oversize Precision Ground Flat Stock | AISI A-2 Air Hardened Steel | 57621 is Starrett precision ground flat stock, supplied ground flat, square and parallel in aisi a-2 air hardened steel so it goes straight into layout, fixturing and machining work without further surfacing.

Oversize stock designed for final sizing by the user, enabling precise thickness and flatness after machining

Precision ground flats provide consistent surface accuracy across the stock for reliable milling, grinding, and forming operations

AISI A-2 air hardened steel offers toughness, wear resistance, and dimensional stability during tooling work

One piece construction eliminates joints that can cause distortion during heavy material removal

Ideal foundation stock for dies, punches, blades, and other tooling components requiring flat stock

Specifications

Dimensions: 5/8 inch thick × 5 inches wide × 18 inches long

Material: AISI A-2 air hardened steel

Finish: Oversize precision ground flat stock

Weight (approximate): 16 pounds

Form: Solid rectangular stock; single piece

Material family: Tool steel; AISI A-2, air hardened

Applications

Tooling and die shops for punches, forming tools, and prototype dies

Stamping and metal fabrication environments requiring flat stock with tight surface finish

Machine shops performing final dimensioning and precision face machining

Industrial manufacturing where durable, wear‑resistant stock is needed for custom tooling

Prototype development and custom tooling projects that demand reliable flat stock from a known steel family