This Knipex 00 20 09 V03 Alligator Waterpump Pliers Set includes three pliers: 180mm, 250mm, and 300mm. These water pump pliers feature dipped PVC handles and a box joint design to prevent slipping from the workpiece. The gripping surfaces have special hardened teeth (approx. 61 HRC) for high wear resistance and stable gripping, made from oil-hardened chrome vanadium electric steel. They offer improved output and comfort compared to conventional water pump pliers of the same length, with a 9-notch adjustment for 30% more gripping capacity. The slim head and joint area provide excellent access to the workpiece, and they self-lock on pipes and nuts, requiring low hand force. These pliers are robust and insensitive to dirt, making them particularly suitable for outdoor work. A guard prevents pinching of the operator's fingers. Specifications for the included sizes: 88 01 180: Hex: 36mm, Pipe: 42mm; 88 01 250: Hex: 46mm, Pipe: 50mm; 88 01 300: Hex: 60mm, Pipe: 70mm.