Cut new or duplicate keys, using key cutting machines.Cut new or duplicate keys using impressions or code key machines..Disassemble mechanical or electrical locking devices, and repair or replace worn tumblers, springs, and other parts, using hand tools.Repair worn, damaged, or defective mechanical parts.Set up and maintain master key systems.Insert new or repaired tumblers into locks to change combinationsDrill holes in parts, equipment, or materialsMove picklocks in cylinders to open door locks without keys.Greet customers enthusiastically.Have general knowledge of locks and related hardware.