The lower jaw automatically adjusts the clamp position to pull out more than 3 times the grip power of a universal locking plier. The patent pending jaw shape ensures a secure grip on various surfaces of pipes, squares, and hexagonal shapes. Comes with a hex key control function that allows you to fine-tune the grip power with a screw bolt. Adopts a first release, making it safe and easy to release with one hand. automatically adjusts clamp position. By doing more than 3 times more grip than standard locking pliers. For clamping work on pipes, squares, hexagonal shapes. Total length: 8.9 inches (225 mm). Maximum opening: 1.9 inches (48 mm). Curved jaw locking pliers (vice grip). Nickel-chrome vanadium