Wrap and Tap Forming Pliers - SFC Tools - 46-130 Has 3 different barrel sizes for one tip, and a plastic coated half barrel for the other tip. Perfect for forming jump rings, bails, ear-wires, and S-hook clasps. Stepped barrels have diameters 5, 7, and 10 mm. The plastic coating will ensure that your metal will not get scratched or marked. Pliers measure 6 (15.2 cm) long.