PB Gibson Handleset For use on exterior doors where keyed entry and security is needed Two Points of Locking. One lock on the deadbolt and one on the handleset for added security Featuring SmartKey re-key technology; re-key the lock yourself in seconds in 3 easy steps Adjustable bottom through bolt allows for easy installation of the handleset to fit a pre-drilled bottom hole Fits door thickness of 1-3/8-Inch to 1-3/4-Inch