grandpa had this cool little wrench. it was sorta automatically adjustable. you just opened them up all the way, grabbed the nut, and closed them. the jaws fit to the nut and locked in place. i've been using pliers for the nigh daily reseating of the cable junctions here. the teeth on the pliers are kinda hard on the cables. this thing would do the job mas besser. he said he had several sizes. i might ask for a set for christmas. hint hint. now if only someone could do the same thing for allen wrenches. they'd be so rich.