The KNIPEX 10 in. High Leverage Center Cutters includes a forged-on axle for heaviest duty. The precision cutting edges will cut soft, hard and piano wire. Cuts thick wires with less effort than other diagonal cutters of the same length. The cutting edges are in the center of the cutter head for high cutting performance with minimum effort due to optimum co-ordination of the cutting edge angle and transmission ratio. The cutting edge hardness approximately 64 HRC. The cutting capacity ranges from 3.5 mm to 5.0 mm depending on the material being cut. Chrome vanadium heavy-duty steel forged, oil-hardened.