Knife

Most folding knives have a locking mechanism. The most traditional and commonplace lock is the slip-joint. This is not really a lock at all, and is found most commonly on traditional pocket knives. It consists of a backspring that wedges itself into a notch on the tang on the back of the blade. The lockback is the simplest and most common true locking knife. It is like a slip-joint, but the lock includes a pivoted latch connected to a spring.