Job Description. Job Description. 1) Installs, repairs, rebuilds, and services mechanical or electrical locking devices, using handtools special equipment. 2) Disassembles locks, like padlocks, and door locks and repairs or replaces worn tumblers, springs and other parts. 3) Inserts new or repaired tumblers into lock to change combination. 4) Cuts new or duplicate keys, using key cutting machine. 5) May keep records of company locks keys.
