The Mortise Dead Lock with Handle is designed to be fitted into the timber edge of a door and allows the door to be manually locked from both sides with a key. A deadlock is a lock bolt only and does not have a latch/catch section for the operation of a door knob/handle. These types of locks are available as either 3 or 5 lever. The Mortise Dead Lock with Handle is widely used in commercial spaces because of their strength and reliability.