The Gator Grip Universal Socket is a universal socket that instantly adjusts to grip hex nuts, screw eyes, hooks, lag screws, and bolt heads. It features a wide range of adjustability that will fit standard 1/4-inch to 3/4-inch and metric 7mm to 19mm nuts and bolt heads. The tool's socket contains 54 hardened steel spring pins for long-lasting durability. When placed onto a fastener, the center pins retract and the outer pins surround the fastener. As the fastener is turned, the torque is transmitted through the outer pins to the walls of the socket, making this socket an ideal choice for heavy-duty personal or professional use. The tool features a 3/8-inch drive, and comes with a 1-year limited manufacturer's warranty.