Knipex Alligator XL Pliers
These 16-inch water pump pliers from Knipex boast a forged box-joint design for a greater top and bottom gripping capacity, with teeth of approximately 61 Rockwell hardness. Once in place, the pliers self-lock on pipes and nuts, eliminating slippage and requiring low hand force. They can also be used in tight, hard-to-reach places thanks to a thin head and joint area. The grip features an 11-notch adjustment and can reach a capacity of 3-½ inches.