Those GW ratcheting bit drivers use a 1/4 female drive socket don't they?
The Blackhawk I bought uses hex, but I was under the impression it required a specific bit holder with a detent or something so I went and found one on Cripe.
When the driver arrived though it turned out to have a magnet inside, so it works with anything standard 1/4 hex.
The bit holder that's made for it does have a stubby little shank on it though , so maybe it fits better than others?