Cold Steel fixed and folding, or pocket knives have a reputation throughout the world for being strong, sharp and extremely reliable when put to hard use. Featuring the Andrew Demko engineered Tri-Ad™ lock, Cold Steel folding, or pocket knives have been tested against many other folding lock mechanisms and none have been able to come close to the strength and durability of the Tri-Ad™ lock. When you purchase a knife from Cold Steel, you're buying more than just "a knife", you're adding a reliable tool for everyday use to your arsenal. Cold Steel knives are used by military, law enforcement Special units, emergency services personnel, self defense professionals and martial artists alike. Try a Cold Steel folding, or pocket knife yourself and feel the difference.