Last Chance 7/16″ X 12″ Aircraft Extension Drill Bit HSS DWDA/CX127/16

Specs

Quantity: 1 piece

Diameter: 7/16 in (0.4375 in)

Overall length: 12 in

Material: High-Speed Steel (HSS)

Type: Aircraft extension drill bit

Shank designation: DWDA/C

Features

Long reach: 12″ reach for deep-hole drilling in recessed or tight spaces (engine bays, frames, bulkheads, machinery housings).

HSS construction: Durability and heat resistance for metal drilling tasks.

Optimized flute geometry: Efficient chip removal and reduced binding during extended passes.

Aircraft-extension design: Maintains alignment in narrow bores and challenging angles.

Materials: Suitable for drilling into steel alloys and aluminum found in aerospace and industrial applications.

Limitations: Not intended for carbide or cobalt applications; for extreme materials consider specialty tools.

Physical

Overall length: 12 inches

Diameter: 7/16 inch

Shank designation: DWDA/C

Pack quantity: 1 piece