Caucasian Belt Multi-Tools?

[cyten]

Does anyone know what these items are called?
I have across a few of these and many in photos but cannot figure out what their purpose i beyond that of a screwdriver and fire starter. I spoke with a Circassian bladesmith who told me the design with one long slot is for straightening or fixing any nicks in the blade of your shashka/kindjal.
This makes sense for that particular design, but for the ones that have two smaller slots and the circular opening in the middle? Any help would be appreciated, any speculation would be welcome as well.