Knipex High Leverage Diagonal Cutting Pliers VDE Certified Grip for very tough, continuous use. The high cutting performance with minimum effort due to optimum co-ordination of the cutting edge angle and transmission ratio . Precision cutting edges additionally induction hardened (cutting edge hardness approx. 64 HRC), for all sorts of wire including piano wire. Made from chrome vanadium heavy-duty steel, forged, oil-hardened. The require 20 % less effort required compared to conventional diagonal cutters of the same length. Available in 3 sizes: 160, 180, and 200mm.Knipex KPX7406160 High Leverage Diagonal Cutting Pliers VDE Wire Cutting Capacities (mm):160mm: Medium: 3.4, Hard: 2.5, Piano: 2.0.