The Teng Tools Mega Bite Pliers have been designed to ensure the highest quality and optimum functionality. The overall length of the pliers gives a maximum leverage to suit the pliers function. Made from medium carbon alloy steel. They have an adjuster screw for the required wire diameter, and a return spring to automatically open the pliers when not in use/ no pressure is applied. For comfort, the pliers have ergonomically designed, two-component handle sleeves. Specification Length: 180mm (7in).Wire Capacity: Diameter: 0.2 - 3.0mm.