The KNIPEX High Leverage CoBolt Mini Bolt Cutters are with a designed with a cutting-edge recess or notch near the joint to keep thicker wire in a better cutting position. The precision cutting edges will cut soft and hard wire. Cutting capacity: maximum 4 mm for hard wire. Cuts material like bolts, nails, rivets, etc. up to 5.2 mm diameter. Exceptional cutting performance with minimum effort because of new lever action design providing a 20:1 ratio. Cutting edges are induction hardened, cutting edge hardness approximately 64 HRC. The return spring and multi-component handles add comfort and ease of use. Made of chrome vanadium heavy-duty steel forged, oil-hardened.