Milwaukee Backpack Vacuum adapters to Hilti Equipment with holder M18 FBPV-0

Connects the Milwaukee Backpack Vacuum to Hilti Tools or other tools with 34-37mm inner diameter.

One Holder is a clip in place style and works for both adapters.
The other one is nearly closed and should be used for the straight adapter

You should use supports for both models.
Maybe consider printing them with thick walls or high infill.