Liner Lock Knives
The liner lock is the most common of today’s blade-locking systems. In knives with locking liners, the handle consists of two metal (usually steel or titanium) plates (the “liner”) on either side of the blade. Handle scales, which can be made from a variety of materials, such as G-10, cover the plates. When the knife is opened, one side of the knife’s liner, often called the lockbar, butts up against the backend of the blade (the tang) and prevents the blade from closing. The lockbar is manufactured so that it angles toward the interior of the knife, creating a bias for the locked position. To close the knife, the knife user applies manual force to move the lockbar to the side so that the blade is unblocked and can be folded back into the handle. The liner lock provides a secure and convenient way to make using a Zero Tolerance folding knife as safe as it can be.