These Extra Large Mandrel pliers are good for a number of jewelry uses including making large even coils and bails for wire wrapped pieces. The large, padded handles are extra comfortable and provide plenty of leverage when working with heavy-gauge wire. The round jaws are barrel-shaped as opposed to being tapered. In addition, the jaws are two different sizes, with this adding to the versatility of these special Wubbers pliers. The larger jaw measures 15.0mm and the smaller 12.0mm in diameter. The leng