roulette-a-bit v.1

I had a lot of fun tweaking this design until it worked. To assemble, screw the threaded piece into the smaller cylinder, then load your favorite screwdriver bits into the revolver cylinder and place on-top of the screw, then screw into the top piece with the logo. To use, slightly untighten, then spin the revolver cylinder to align the bit so it can come out. Retighten, and get to tightening.