The CoBolt High Leverage Fencing Pliers with cutting edge recess (notch) include reduced cutting-edge hardness to allow more pressure on the sides of the cutting edges (e.g. for making fences). The precision cutting edges are great for soft and hard wire. Cutting capacity: maximum 4 mm for hard wire. Cuts material like bolts, nails, rivets, etc. up to 5.2 mm Dia. Exceptional cutting performance with minimum effort because of new lever action design. Cutting edges additionally induction hardened, cutting edge hardness approximately 62 HRC. Made of chrome vanadium heavy-duty steel forged, oil-hardened.