This is a Skadis Holder for the Wera Bit-Check 6 and Bit-Check 7 Bit Sets. The Bit Set is clipped in from the underside and can be opened and closed while haning inside the holder. The Holder features another 7 Hex Slots to hold other lose Bits.
It is mounted to the Skadis Board with the famous Skadis_Universal_Hook.stl from CSD_Salzburg.
Other Bit-Check Holders: