Locking Pliers
Locking pliers / universal grips/ mole grips are used when a particular task requires pliers that will lock firmly into place –for metalwork, welding, or similar tasks. They feature a bolt and lever mechanism to lock the clamps into place before releasing them again.
Locking pliers are available in multiple configurations and sizes for different uses, and commonly known by the brand names Vise-Grips in the United States and Mole wrenches in the UK.