How a Mortise Lockset Works

A mortise lockset contains the workings for the knob, lever or grip handle, latch and deadbolt. Unlocking the deadbolt also frees the latch. Lock buttons at the door's edge engage or disengage the lock. Mounting a mortise lockset in a door's edge calls for fairly tricky carpentry work.

--Don Vandervort
Related terms: how door lockset works, how mortise lock set works, how door locks work, door lock parts diagram