● This is an optional part for the Digi Ratchet driver type ( GLK060~500) . ●By attaching it to the Digi Ratchet driver type, ratchet operation becomes possible and is convenient for quick rotation. ●It is possible to switch between clockwise and counterclockwise rotation by operating the changeover switch. ●Sockets and bit sockets with a 6.3sq. insertion angle can be used.