Vessel Manual Impact Driver With Cushion Grip Handle 5/16" Hex & 1/2" Sq Drive Set (7-piece)Vessel Manual Impact Driver with Cushion Grip Handle 5 16"e; Hex & 1 2"e; SQ Drive Set (7 Piece) Manual Impact Driver for Fastening or Loosening screws or nuts by striking the handle end with hammer For heavy duty use One touch switching of the rotation direction Soft non slip resin handle comfortable to grip Designed for less shock on hands If the bit adapter is detached, a 1 2"e; socket can be attached 5 16"e; Bit Driver (8mm) Bits Slotted: Slot: 10