These Knipex High Leverage Diagonal Cutters have the following specification: Length: 250mm Cutting Capacity (mm): Piano: 3.0, Hard: 3.5, Medium: 4.6 Knipex 74 01 Series High Leverage Diagonal Cutters for very tough, continuous use. Made from chrome vanadium, heavy-duty steel, forged, multi stage oil-hardened. The precision cutting edges additionally induction-hardened (cutting edge hardness approx. 64 HRC), for all sorts of wire including piano wire. Fitted with ergonomically plastic coated styled handles for added grip and comfort. They offer high cutting performance with minimum effort due to optimum coordination of the cutting edge angle and transmission ratio.