Top Rated 40 X 6″ Aircraft Extension Drill Bit Cobalt GLBCOX640

Technical specification overview for the #40 x 6″ cobalt aircraft extension drill bit.

Specs

Quantity: 1 PC

Diameter: #40

Length: 6″ overall

Material: Cobalt alloy

Type: Aircraft extension drill bit

Features

Long-reach 6″ design enables access to deep or hard-to-reach holes in metal assemblies

Cobalt alloy construction provides enhanced edge retention and heat resistance during drilling

Geometric precision supports accurate hole layout and straightness in tight tolerances common to aerospace work

Optimized for use in setups that accept small-diameter bits, reducing the need for multiple bit changes in complex assemblies

Reduces tool wear and work hardening when drilling through tougher metals encountered in maintenance and fabrication environments

Physical

Overall length: 6 inches

Diameter: #40

Material: Cobalt alloy

Quantity: 1 PC