Byrd knives are the subject of several bright and fresh engineering refinements for 2010 with improved ergonomics, four-way clips and full-flat ground blades. Like Spyderco knives, byrd knives are subject to our penchant for C.Q.I. - Constant Quality Improvement. As manufacturing processes and material availability improves, The newest evolution of the Cara Cara has a full-flat ground high performance 8Cr13MoV blade. Shaped like a "comet" the hole in the blade symbolizes quality and careful manufacturing tolerances. On the blade's spine is a group of crosshatching called jimping. Jimping enhances the thumb\'s grip on top of the blade making cutting slip-resistant. A finger choil enhances the ergonomic stainless steel handle adding comfort and control. Mid-positioned back lock has a David Boye cut away dent, a safety feature that allows tightly gripping the handle without unintentionally releasing the lock.