Alfa Tools 1/4 x 3/8 x 2 Ball Extension

Convert standard ¼-inch hex shank drivers into 3?8-inch square-drive tools with secure socket retention — the SE063 ball-lock hex socket extension measures 2 inches overall and uses a spring-loaded detent ball to hold sockets firmly in place, sold in 10-piece packaging for industrial, maintenance, or assembly use. (Sources: Alfa Tools Catalog Section E; Bostwick-Braun)