I have a bit holder handle for the 1/4 Wiha CentroFix Slim designed similar to a Rc tool handle
https://www.wiha.com/de/de/werkzeuge/bits/wiha-bithalter-und-verbindungsteile/bithalter-fuer-elektrowerkzeuge/schnellwechselhalter/598/bithalter-centrofix-super-slim-mechanisch-verriegelbar
The author marked this model as their own original creation.
