Add this must have Husky 1/4 in. Drive Impact Driver Socket Adapter Set to your DIY or professional toolbox. Ideally the set is used with impact drivers and sockets, these adapters work on 3 different drive sizes of standard and deep sockets (1/4 in. 3/8 in. and 1/2 in. drives). For strength and durability, they are made of heat-treated steel and offer a black oxide coating for corrosion resistance. The set quickly converts any power drill or 1/4 in. impact driver into a socket driver to quickly tighten or remove fasteners.