For driving large screws it is hard to beat a hand brace. Rechargeable drills tire quickly on anything over a #8 screw, but a brace lets you drive a #14 without dampening your brow. Screwdriver bits for braces used to be available, but were always single style. Our hex driver has a 1/4" hex socket with a rare-earth magnet in it to firmly hold any standard 1/4" bit – Phillips, square-drive, POZIDRIV, etc.
We have a second brace driver for use with sockets. It is the fastest way to drive lag bolts or wheel studs and can be used with any 3/8" square-drive socket.
Both brace drivers are nickel-plated steel and about 4" long.