Aircraft Extension Drill Bit Kits

Aircraft Extension drill bit kits are available in High Speed Steel and Cobalt and 6” and 12” lengths. Drill bit sizes included in the kit are #10, #21, #30, and #40.

Extension Drill Bit kits are available in 12 piece (3 ea.) and 24 piece (6 ea.).

All kits are available in either HSS or Cobalt

Manufactured in the USA.