21 X 6″ Aircraft Extension Drill Bit HSS DWDA/CX621 Weekend Sale

Technical description for [1 PC] #21 x 6″ HSS Aircraft Extension Drill Bit, DWDA/C.

Specs

Quantity: 1 piece

Diameter: #21 (approx. 0.1598 in / 4.06 mm)

Length: 6 in

Material: High-Speed Steel (HSS)

Code: DWDA/C

Features

6″ extension reach enables drilling in tight aircraft compartments and panel gaps

HSS construction supports drilling through common aerospace metals

Designed as an aircraft extension bit for accessing recessed or hard-to-reach holes

Precise #21 hole size suitable for small-diameter applications

Suitable for metals typically drilled with HSS bits (e.g., aluminum alloys, mild steel) when used with appropriate speeds and feeds

Physical

Overall length: 6 in

Diameter: #21 (~0.1598 in / 4.06 mm)

Material: High-Speed Steel (HSS)

Code: DWDA/C