I've been carrying keys and keychain tools the same way for years. With one of the detachable rings, it seemed the most efficient. Keyword: Seemed.

The problem here was, the knife and file on the Alox SAK were essentially useless because they open at a pivot near the keyring which makes them difficult to use (at best).
I looked at the various multi-detachable keyrings, but thought $28-$45 was a lot for that sort of function.
So, I went to the hardware store


I came back with a carabiner and screwgate link. Each rated for over 120lbs of weight. That should be sufficient, I'd think.

The keys on the ring go directly on the carabiner and each of the keychain tools are threaded onto the screwgate link. Then the link is clipped onto the carabiner.
This way, I can remove the keychain tools when the keys don't need to go (ie when I'm not going to the hospital) and I still have their functionality.

As for the problem with the Alox SAK:

The screwgate is easy to open to remove the Alox Classic:

and is ready to use unencumbered by the other tools:

Best part:
Total cost, $2.89 (with spare screwgate link included

)