1. Professional-grade universal socket wrench.
2. Universal self-adjusting socket with automatic standard and metric applications.
3.Adapter turns your drill into a socket driver.
4. The tool's socket contains 54 hardened steel spring pins for long-lasting durability.
5. Adjust to clamp hex nut, screw hole, hook, square head screw and bolt head.
6. Has more than 125 pounds of torque.
7. Ideal for rusted and damaged heads.
8. Self-adjusting range is standard 1/4 inch to 3/4 inch and metric 7mm to 19mm.
Instructions for use:
When placed on the fastener, the center pin retracts and the outer pin surrounds the fastener. When the fastener is rotated, torque is transmitted to the wall of the socket through external pins, making the socket ideal for heavy personal or professional use.