Clearance 1/8″ X 12″ Aircraft Extension Drill Bit HSS DWDA/CX121/8

1/8″ x 12″ HSS Aircraft Extension Drill Bit, DWDA/C, is a long-reach cutting tool designed for drilling in deep or hard-to-access areas typical of aircraft maintenance and metalworking. Constructed from high-speed steel, it delivers consistent performance through steel and aluminum workpieces.

Specs

Quantity: 1 piece

Diameter: 1/8″ (0.125″)

Length: 12″ overall

Type: Aircraft extension drill bit

Material: High-Speed Steel (HSS)

Designation: DWDA/C

Shank/Working diameter: 1/8″

Features

Extended reach enables drilling in deep or hard-to-access areas commonly found in aircraft maintenance and metalworking projects.

HSS construction provides durability and heat resistance when cutting through steel and aluminum.

DWDA/C designation identifies the bit geometry for consistent cutting performance in challenging setups.

Long length with 1/8″ diameter supports hole alignment and reduces the need for multiple tool changes during extended drilling tasks.

Use cases include engine bays, wing cavities, rib assemblies, brackets, and other tight, multi-layer installations where access is limited.

Physical

Overall length: 12 inches

Shank diameter: 1/8 inch

Working diameter: 1/8 inch

Material: High-Speed Steel (HSS)

Designation: DWDA/C