As one of the original multi-tools manufacturers, we have learned quite a bit over the years. Like how to make the toughest tools with patented gear driven compound leverage mechanisms. You have let us know, that quick access is a must. Just flip our tools out with one hand and see for yourself how well we listened. Versatility in the field is a necessity and Allen bolt construction provides access. There is also a myriad of features that you might not readily see, like our saws cut faster and our files shave better. And while you are at it check out one of the best V-Cutters in the business. Does all this make sense? You bet, which is why leading military forces choose SOG! Version 1 Patented with no gear covers.