Introducing Kwikset's Key Control Deadbolt, featuring SmartKey re-key technology, a revolutionary cost and time-saving alternative to master keying. With this two-cylinder Key Control Deadbolt, either cylinder can be re-keyed in seconds, without removing the lock from the door. Retain your one-key access to all units and gain more flexible key management, all while saving time and money. The new Key Control Deadbolt is an ideal alternative to master keying.