Best Choice 27/64″ X 6″ Aircraft Extension Drill Bit HSS D/AA/CX627/64
Original price was: $14.88.$7.74Current price is: $7.74.
Specs
Quantity: 1 piece
Diameter: 27/64″ (0.4219″)
Overall length: 6″
Material: High-Speed Steel (HSS)
Type: Aircraft Extension Drill Bit
Point geometry: D/AA/C
Features
Extended reach with a 6″ length for drilling in tight, recessed, or hard-to-access areas.
Durable HSS construction offers heat resistance and terrain-appropriate performance for metal drilling tasks.
Single-piece design provides consistent rigidity during use, reducing wandering in confined spaces.
Aircraft extension geometry optimized to improve access in constrained workspaces.
Targeted use cases include maintenance and fabrication tasks requiring precise drilling in confined spaces such as aerospace components, automotive frames, and machinery housings.
Physical
Overall length: 6″
Diameter: 27/64″ (0.4219″)
Material: High-Speed Steel (HSS)





