It includes 1/4in, 3/8in and 1/2in drive tools along with spanners, pliers, screwdrivers, bits and hex keys, giving you a ready-to-use selection in one unit. The mix of sockets, deep sockets, spark plug sockets, E star sockets, ratchet combination spanners and hand tools makes it useful for anything from routine fastening and stripping work through to more detailed repair and assembly tasks.