Kit Carson, a Kentucky resident and retired Master Sergeant was a distinguished knife designer. Kit passed in 2014, but prior to making his final journey Kit devoted 44 years of his life to designing excellent blades. The M40-03 is a perfect example of his work, and it may not be a surgeon’s first choice but in a pinch I guarantee it will fill the need. The pivot and lock up of this folder is one of the best I’ve seen.