Free
Drill holder for 8 metric bits, every mm size from 3mm to 10mm.
Uses multiconnect so is removable from the multiboard wall. Multiconnect can be found here
I used the flush connector-
https://www.printables.com/model/1160115-flush-multiconnect-generic-connector-for-multiboar
You can also use the raised connector -
https://www.printables.com/model/1074671-raised-multiconnect-generic-connector-for-multiboa
Names are used only to indicate the source of a result. Polyzon is not affiliated with the listed sites.