Secure Checkout 29/64″ X 12″ Aircraft Extension Drill Bit HSS D/AA/CX1229/64

This [1 PC] 29/64″ X 12″ HSS Aircraft Extension Drill Bit (D/AA/C) is engineered for metalworking tasks that require access to deep or recessed holes. The extended-reach design integrates with standard drills to maintain alignment through tight assemblies and constrained spaces.

Specs

Quantity: 1 piece

Diameter: 29/64 in

Length (overall): 12 in

Material: High-Speed Steel (HSS)

Designation: D/AA/C

Type: Aircraft extension drill bit

Application focus: metal drilling with extended reach

Features

Aircraft extension design enables extended reach to deep or recessed holes, supporting drilling in restricted or awkward workspaces.

Precise 29/64 in diameter supports tight tolerances in critical holes during metal fabrication and maintenance work.

Long, single-piece construction reduces wobble and improves alignment, contributing to cleaner holes and less rework in metal projects.

High-Speed Steel (HSS) construction provides durability and heat tolerance for drilling through common metals such as steel and aluminum.

12-inch overall length allows access to holes behind fixtures, inside enclosures, or within machinery where standard bits can’t reach.

Physical

Overall length: 12 inches

Diameter: 29/64 inches

Material: High-Speed Steel (HSS)

Type: Aircraft Extension Drill Bit

Designation: D/AA/C