Cold Steel's Engage series of folders are exceptional in that they represent the introduction of the exclusive, patent-pending Atlas Lock. It's a locking mechanism that provides an astonishing level of strength and safety in a folding knife. The stonewashed blade features a shallow indent on the spine that makes for a comfortable place for your thumb or index finger when using the knives for precision work. The Engage is the quintessential EDC pocket knife: you have quality, you have solid lock-up, you have excellent ergonomics, and you have a clip for secure carry.