Knipex Alligator Adjustable Water Pump Pliers – 10″. The KNIPEX water pump pliers offer superior output and comfort compared to conventional pliers of the same length. With 9 adjustment positions they provide 30% more gripping capacity and excellent access to the workpiece due to their slim head and joint area. The self-locking feature on pipes and nuts ensures no slipping off the workpiece and requires low hand force. Constructed from chrome vanadium electric steel these pliers are forged and multi-stage oil-hardened for durability making them suitable for outdoor work. The box-joint design offers high stability with a double guide and the pinch guard prevents operators fingers from being pinched.