TheDuralast Versadrive is a 2-in-1 drive adapter set designed to save technicians time by allowing them to use sockets and drive bits without changing adapters. The set includes two adapters, each with a square drive head, 3/8" and 1/2" drives, an integrated hex bit holder, and a 1/4" drive bit. The 3/8" adapter has a 1/4" input hex connection, and the 1/2" adapter has a 5/16" input. Each adapter has a 1/4" quick-change hex shank that allows it to work with various battery-powered impact drivers and drills. The heat-treated steel construction of these adapters ensures their strength and durability.