Folding blade features

A folding knife connects the blade to the handle through a pivot, allowing the blade to fold into the handle. To prevent injury to the knife user through the blade accidentally closing on the user's hand, folding knives typically have a locking mechanism. Different locking mechanisms are favored by various individuals for reasons such as perceived strength (lock safety), legality, and ease of use. Popular locking mechanisms include: Slip joint Ц Found most commonly on traditional pocket knives, the opened blade does not lock, but is held in place by a spring device that allows the blade to fold if a certain amount of pressure is applied. Lockback Ц Also known as the spine lock, the lockback includes a pivoted latch affixed to a spring, and can be disengaged only by pressing the latch down to release the blade.[5] Liner Lock Ц Invented by Michael Walker, uses a leaf spring-type liner within the groove of the handle that snaps into position under the blade when it is deployed. The lock is released by pushing the liner to the side, to allow the blade to return to its groove set into the handle. Compression Lock Ц A variant of the Liner Lock, it uses a small piece of metal at the tip of the lock to lock into a small corresponding impression in the blade. This creates a lock that doesn't disengage when the blade is torqued, instead becoming more tightly locked. It is released by pressing the tab of metal to the side, to allow the blade to be placed into its grove set into the handle. Frame Lock Ц Also known as the integral lock or monolock, this locking mechanism was invente

by custom knifemaker Chris Reeve for the Sebenza as an update to the liner lock. The frame lock works in a manner similar to the liner lock but uses a partial cutout of the actual knife handle, rather than a separate liner inside the handle to hold the blade in place. Collar lock Ц found on Opinel knives Button Lock Ц Found mainly on automatic knives, this type of lock uses a small push-button to open and release the knife. The Benchmade Axis Lock mechanism Axis Lock Ц A locking mechanism exclusively licensed to the Benchmade Knife Company. A cylindrical bearing is tensioned such that it will jump between the knife blade and some feature of the handle to lock the blade open. Arc Lock Ц A locking mechanism exclusively licensed to SOG Specialty Knives. It differs from an axis lock in that the cylindrical bearing is tensioned by a rotary spring rather than an axial spring. Ball Bearing Lock Ц A locking mechanism exclusively licensed to Spyderco. This lock is conceptually similar to the axis and arc locks but the bearing is instead a ball bearing. Tri-Ad Lock Ц A locking mechanism exclusively licensed to Cold Steel. It is similar to a lockback, but has a steel stop pin mounted between between the front of the latch and the back of the blade for added strength. PickLock Ц A round post on the back base of the blade locks into a hole in a spring tab in the handle. To close, manually lift (pick) the spring tab (lock) off the blade post with your fingers, or in "Italian Style Stilettos" swivel the bolster (hand guard) clockwise to lift the spring tab off the blade post.