Grade 2 security entry lever with SmartKey cylinder. Lever is reversible for right hand or left hand doors. SmartKey cylinder eliminates traditional pins and springs. This new design provides instant re key functionality. SmartKey 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. Levers are keyed alike in multiples of 4.