This is a version of my mini-screwdrivers that will work with a double-sided ¼" bit. The bit needs to be 70mm or less in length.

I have included two print types

1. Screwdriver with body that fits a double-sided bit
2. Screwdriver with a magnet embedded that fits a double-sided bit. ¼" x 1/16" or 2mm x 6mm magnets can be used. You will need to pause the print to add the magnet.

Print Settings

1. Layer height - 0.15 or 0.1 (I have not tried 0.2). I think smaller layer heights work better because of the small threads and gnarling. 
2. 4-5 walls (or use 100% infill)
3. USE A BRIM - because they are so skinny and tall, it'll most likely fail without a brim.