if i was using a tool that often, i would damn sure not be taking a cap on and off and dumping sockets in and out of the handle countless times a day. get a nice ratchet and a nice rail and mount the few sockets you need on a regular basis. it will keep them organised for sight inventory and the rail can be trimmed for length to take the least amount of room. the minute amount of space it consumes and the weight you save would more than likely be very little.
It's called a adjustable wrench- or bosuns hammer. Take two sizes, the small one to use and the big one to hit people who try to take the small one.
