Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:2056071.

I needed something to organize all the precision screw driver bits I've collected into one place and didn't just want them floating around in a box or bin. The tray can organize 35 bits with space to have a few spares or whatever. I also printed a list of the bits and glued it to the inside of the lid so I know what bit is where.