If you’re going to have one EDC item taking up space in your pocket, a good choice is the Leatherman Wave Plus. This is Leatherman’s most popular multitool, and it’s recently been updated with better wire cutters.
On top of that, the multitool also sports many other functions: pliers, serrated and plain blades (that lock), screwdriver, scissors, and some other helpful features. Considering all of the features it packs, it’s very lightweight and compact, which is a nice combination to have for something that’s jangling around in your pocket every day.
The most notable feature about this multitool is that you can open and use every tool the Leatherman offers. The Wave Plus comes with a 25-year limited warranty that should handle any wear and tear you might have for the next couple of decades. Leatherman makes all of their products in the USA.