I have a Leatherman K503X ...uhhhh, thing! Has a large, thick 154CM serrated/regular combo blade, interchangable screwdriver bits, bottle/can opener, retractable carabiner and belt clip. The holster has a spare tray of bits in a small back pouch. Really like it as "just a knife" seems to be a waste of real estate and how to open beer bottles on the weekend? Multi-tools I generally use all the goodies with the screwdriver bits getting the most use. The LM K503X gets used mostly as a knife although I use the other functions. Not sure the classification... maybe along the same lines as a SAK? I am not sure if I should post this in the knife or multi-tool part of EDCF!