After putting up my shutters for Hurricane Michael and hand tightening over 100 wing nuts, I decided I'd make my job easier when taking them down and whenever I need to put them back up in the future. So, this bit will fit in a standard drill and make it easy to install and remove wing nuts. I'd recommend setting your torque low as you don't want to put them on too tight or break the bit.

No supports needed, but you might want to print with a raft since there isn't much touching the build plate.