29 X 12″ Aircraft Extension Drill Bit HSS DWDA/CX1229 High Quality

Specs

Diameter: No. 29 (0.136 in / 3.45 mm)

Overall length: 12 in (304.8 mm)

Material: High-Speed Steel (HSS)

Quantity: 1 piece

Designation: DWDA/C

Features

Long-reach design: Enables deep-access drilling in metal parts and assemblies, reaching recessed cavities and through-holes without re-clamping or repositioning the workpiece.

HSS construction: Durable material that maintains cutting edge and is easily re-sharpened for metalworking tasks.

Precise hole size: No. 29 diameter provides a specific pilot or fastener hole in constrained spaces.

Aircraft extension form factor: Optimized for rigid performance with extension holders and drill chucks in tight-tolerance applications.

Ideal use cases: Aerospace maintenance, automotive fabrication, and other metalworking scenarios requiring extended reach.

Practical usage: Best used with standard drill motors and long-reach extension accessories designed for deep-hole drilling.

Physical

Overall length: 12 in

Diameter: No. 29 (0.136 in / 3.45 mm)

Material: High-Speed Steel (HSS)

Quantity: 1