74 01 250 KNIPEX High Leverage Diagonal Cutter For very tough, continuous use. High cutting performance with minimum effort due to optimum coordination 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. the 250-mm-long diagonal cutter is suitable for copper conductors up to 16 mm² and aluminium conductors up to 35 mm². - Cutting capacities medium hard wire (diameter): 4.6mm- Cutting capacities hard wire (diameter): 3.5mm- Cutting capacities piano wire (diameter): 3.0mm