The Knipex 88 01 Series Alligator Water Pump Pliers with dipped PVC handles and a box joint design prevents slipping from the workpiece. The gripping surfaces have special hardened teeth to approx. 61 HRC offering high wear resistance and stable gripping. They are made from chrome vanadium electric steel, that has been oil-hardened. They offer more output and comfort compared to conventional water pump pliers of the same length and have a 9-notch adjustment positioning for 30 % more gripping capacity. The slim design of the head and joint area provide good access to the work piece and self-locking on pipes and nuts means no slipping on the work piece and low hand force required. Alligator water pump pliers have a robust construction, insensitive to dirt. Particularly suitable for outdoor work. The guard prevents operators fingers being pinched. Specification Capacity: 88 01 180: Hex: 36mm, Pipe: 42mm.88 01 250: Hex: 46mm, Pipe: 50mm.88 01 300: Hex: 60mm, Pipe: 70mm.88 01 400: Hex: 95mm, Pipe: 90mm.Knipex 88 01 400 Alligator Water Pump Pliers PVC Grip Size: 400mm.Capacity: 89mm.