I am trying to find out if anyone knows how to secure the threaded ring in this 
"Chuckollet" when mounting a 5C collet.


The indexing key is visible from the front and back views.

The 2 allen key adjustments on the side seem to be locking devices, and don't
rotate the threaded ring, (as might have been hoped) which is visible from the back view.


The threaded ring is mounted on ball bearings and turns very freely.

The knurled ring at the front of the chuck moves the tapered body of the chuck away 
from the threaded ring to compress and tighten the collet.   There is a knurled locking
ring behind it.

Included images:

Chuckollet-Front.jpg
Chuckollet-Back,jpg
Chuckollet-Side1.jpg
Chuckollet-Side2.jpg