Pliers grip, twist and pull, so they are read as firm control and dealing with something stubborn. They can stand for getting a hold on a tricky situation.
Has this come up in your dreams before? What was going on in your life then?
My Cosmic Code has a private dream journal. Write a dream down and the app picks out the symbols in it, shows what dream books say about them and, over time, which words recur across your entries. The journal is stored on your device only.