Disc tumbler lock
From Wikipedia, the free encyclopedia
A Disc tumbler lock is a lock composed of slotted rotating detainer discs. A specially cut key rotates these discs like the tumblers of a safe to align the slots, allowing the sidebar to drop into the slots, thus opening the lock. Unlike a wafer tumbler lock or a pin tumbler lock, this mechanism does not use springs. From a security standpoint, the disc tumbler lock cannot be bumped.
