Don’t Miss Out 11/64″ X 12″ Aircraft Extension Drill Bit HSS D/AA/CX1211/64

This description covers a single-piece 11/64″ x 12″ HSS aircraft extension drill bit with D/AA/C shank. Its long reach is designed for deep or recessed holes in tight spaces such as airframes and engine bays.

Specs

Diameter: 11/64″ (4.37 mm)

Overall length: 12″ (304.8 mm)

Material: High-Speed Steel (HSS)

Type: Aircraft extension drill bit

Shank/code: D/AA/C

Quantity: 1 piece

Features

Long reach extension of 12″ enables access to deep or recessed holes in tight spaces, such as airframes and engine bays.

Small-diameter 11/64″ bit supports precise pilot holes and step drilling in confined panels.

HSS construction provides versatility for drilling common metals encountered in maintenance work.

Precision-ground tip and flute geometry designed for consistent starts and reliable hole quality in metal work.

Shank/code D/AA/C indicates a defined retention profile for smooth operation within compatible tooling setups.

Ideal for aerospace, automotive, and fabrication tasks where access is limited and reach matters.

Physical

Diameter: 11/64″ (4.37 mm)

Length: 12″ (304.8 mm)

Material: High-Speed Steel (HSS)

Shank: D/AA/C

Quantity: 1 piece