Popular 13 X 12″ Aircraft Extension Drill Bit HSS DWDA/CX1213

Specs

Diameter: #13

Length: 12″ (304.8 mm)

Material: High-Speed Steel (HSS)

Type: Aircraft extension drill bit

Shank designation: DWDA/C

Quantity: 1 piece

Features

12″ extended reach for drilling deep holes in hard-to-access areas such as aircraft skin panels, ribs, and internal structures.

HSS construction provides durability and heat resistance for metal and composite drilling tasks common in aviation maintenance.

Designed for repeat use in professional shop environments requiring reliable extended-bore capability.

DWDA/C shank designation enables secure engagement with extension-bit systems and drill chucks.

Consistent diameter through the shank and flute geometry aids steady chip evacuation during deep-hole work.

Physical

Overall length: 12 inches

Diameter: #13

Material: High-Speed Steel (HSS)

Shank: DWDA/C