Magic Crimping Pliers for Making Jewelry Unique crimping plier created exclusively for use with 2mm sterling silver or gold filled crimp tube Just a few easy steps will form a 2mm crimp tube into a more appealing round bead. Tip: The best results are achieved when used with Beadalon wire sizes .018" or .019". This tool will add that "finishing touch" to any of your wire projects. Overall length: 4-1/4", Jaws: 1/2"