1/4" Dropper Cap Capper

thingiverse

I got fed up with wrestling with those tiny lids, so I came up with a solution - a 1/4" drive that can be used in a small screw gun. I also created a pocket for a tiny neodymium magnet, which is 4.4mm x 0.8mm and has some epoxy underneath to secure it in place. The image attached shows how I modified the 1/4" drive. To replicate this, grab a "nut.stl" file and scale it down until you see the smallest part of the shaft, as shown in the image.