3/8-IN DRIVE UNIVERSAL PIN SOCKET AND HEX ADAPTER SET

Designed with an innovative automatically adjusting pin system, this single socket can fit almost any type of fastener. To add extra utility, this socket comes with a 1/4-inch hex to 3/8-inch drive adapter so you can turn any corded or cordless electric drill or impact driver into a powerful socket set. Fits 4-point, 6-point, 8-point, 12-point, spline, star, square, and even nuts and bolts with mostly rounded heads. Can adapt to fit fastener heads that range in size from 1/4-inch to 3/4-inch SAE (7mm to 19mm metric) with ease.