Drill motor
An electric or pneumatic motor that drives a chuck that holds a twist drill. The best drill motors produce high torque, and their speed can be controlled.
Aviation Maintenance Technician Handbook — Airframe, p. G-13
An electric or pneumatic motor that drives a chuck that holds a twist drill. The best drill motors produce high torque, and their speed can be controlled.
Aviation Maintenance Technician Handbook — Airframe, p. G-13