An for Bosch 12 Volt optimised version of a Makita 12V mount from Thingiverse (https://www.thingiverse.com/thing:2721577)
Print is on Youtube: https://youtu.be/J-fPe2PG1eo
Assembly is a little bit tricky. Just use two bit holder like in picture 4.
Im going to release Version 2 these days.
Step-file included. For questions feel free to ask.
Suggestions for improvement are always gladly seen.