Grade 2 security entry lever with Smart Key cylinder. Lever is reversible for right hand or left hand doors. Smart Key cylinder eliminates traditional pins and springs. This new design provides instant re-key functionality. Smart Key cylinder is a bump-resistant, higher pick-resistant lock. Included with each lock is the re-keying learning tool that allows the lock to be re-keyed in 3 easy steps. Fits all standard doors 1-3/8″ up to 2″. Standard adjustable backset 2-3/8″ – 2-3/4″. Requires 2-1/8 diameter lockset bore hole and a 1″ diameter latch hole.