This is a stand I designed to hold all the tiny bits that go with the Hilda 18V Rotary Pen, which can be found on AliExpress. See it comes with a package for the bit holder things and a container for the rest of the pieces, but it's just not very handy. This way they are well organised and easily grabbed when needed, instead of having to rifle through a compartment.
I used mostly default print settings, with small adjustments based on my experience with my specific 3D printer. If the drill bit holes come out smaller than they should, just drill with the appropriate bit to open it up some. Otherwise set the printer to a low speed while it's printing those tiny holes.