The Wubbers Large Triangle Mandrel Pliers are designed to be used with wire up to 12 gauge as well as sheet that is 20 gauge or lighter. The triangle-shaped jaws are not tapered, allowing for the same sized shape each time. In addition, the jaws are two different sizes, adding to the versatility of these special Wubbers pliers. The Large Triangle Mandrel Pliers measure approximately 6.75 inches long with a 14mm large jaw and an 11mm small jaw. The elongated, padded handles are extra-comfortable and easy on your hands.