Compatible with 1/4 square sockets, DEWALT ELITE SERIES Socket Adapters feature a ball detent to securely hold sockets, while allowing for quick, toolfree socket changes. Each socket adapter features a 1/4 hex shank rated for use in impact drivers and drill drivers. Specifications. Drive Conversion 1/4 in. hex to 1/2 in. square. Socket Retention Ball detent. Impact Rated Yes.