Bring fun geometric shapes to your designs with the Wubbers large triangle mandrel pliers. These pliers feature two sizes of triangle-shaped jaws that can handle anything from 12 to 28 gauge wire. One will make triangles with an inside diameter of 11.24mm and the other will make triangles that are 14.27mm. The outside diameter of the triangle will change depending on what gauge wire you use. Use these pliers to form perfectly matching triangles in seconds. With these pliers, you can make bead frames, bezels or even hollow beads. These pliers are for use with 12 gauge dead soft sheet metal or lighter and for use with up to 16 gauge dead soft wire.