Fan Favorite 3/16″ X 4″ X 18″ Starrett Oversize Precision Ground Flat Stock AISI D-2 Air Hardened Steel 69397

3/16″ X 4″ X 18″ Starrett Oversize Precision Ground Flat Stock | AISI D-2 Air Hardened Steel | 69397 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.

True flatness achieved by precision ground surfaces for reliable machining references

AISI D-2 air hardened steel offers improved wear resistance for tooling and fixture components

Oversize length reduces the need for joints when fabricating long parts or fixtures

Thick enough for durable blanks used in die building, punching, and forming applications

Single-piece stock minimizes surface disruption from joints during secondary operations

Specifications

Form: Oversize precision ground flat stock

Material: AISI D-2 air hardened steel

Finish: Precision ground surfaces

Thickness: 3/16 inch

Width: 4 inches

Length: 18 inches

Dimensions: Thickness 3/16 inch, Width 4 inches, Length 18 inches

Surface: Ground for flatness and planarity

Material state: Alloyed tool steel designed for subsequent heat treatment and machining

Applications

Tool and die shops for blanking, punching, and die components

Machining and metal fabrication facilities needing wear-resistant blank stock

Fixture and gauge construction for accurate setups and references

Metal forming and stamping operations requiring stable, true-flat stock

General manufacturing contexts where long, single-piece flat stock reduces joint wear