I carry a
leatherman mini and a swiss army knife on tour. The mini tool has a handle that hinges in half so is small to carry and has full sized pliers. I use it a lot on tour and it is totally reliable.
The SAK is mainly used for food duties.
The pliers are the main tool I use for bike maintenance and handling a hot Triangia stove simmer ring.
Touring without a set of needle-nosed pliers is asking for trouble. Ive used them to unstick valve ringe, fish out the remnants of broken gear cables, tension cables etc etc.