My EDC knife is actually a Leatherman Skeletool CX. I use it at work every single day.
Before that, I EDC’d a SOG Twitch II assisted opening knife. That sucker can be honed shaving sharp.
When I go out on the town I carry a Skeletool and I carry a Leatherman Wave with a leather sheath on my belt for work. On the Wave I use the pliers, screw driver, wire cutter, regular and serrated blade every day at work. I forgot to put it on my belt last week and had to bring in a bunch of extra hand tools to accomplish the same tasks I need to complete with the Wave. The 25 year warranty on the knives is also a great thing to have.