Knipex High Leverage Diagonal Cutters – 10″. KNIPEX High Leverage diagonal cutters require 20% less effort compared to conventional cutters of the same length making them ideal for very tough continuous use. They feature a forged-on axle for heavy-duty work and provide high cutting performance with minimal effort due to the optimal coordination of the cutting edge angle and transmission ratio. The precision cutting edges are induction hardened to approximately 64 HRC allowing them to cut several types of wire including piano wire. Made from chrome vanadium heavy-duty steel these cutters are forged and multi-stage oil-hardened for durability.