High torque occasions: water pump pliers are usually used to tighten or loosen bolts, nuts and other fasteners, especially where high torque is needed, such as water pump maintenance. They are usually designed to be heavier to provide greater clamping force. The opening of water pump pliers is usually smaller to adapt to the size of bolts and nuts, and its head is stronger to cope with high-strength tightening and loosening actions.
Small space: pipe tongs are mainly used to clamp and rotate steel pipes and other pipes. Their design pays attention to flexibility in order to operate in a narrow space. The opening of pipe tongs is usually large, which can adapt to pipes with different diameters, and its head is relatively thin to avoid excessive pressure or damage when clamping pipes.