This is not the chuck i received. The one I got looks cheap and nasty requiring a manual chuck key. It sort of works though. Trying to tighten the chuck is difficult as the key doesn't fit properly. Not very happy with this one.

We haven't used it yet but the quality appears excellent

The rotary chuck I received was great once I read the instructions it was easy to set up. Mind came with a chuck key and not the spring loaded version which was great as it locked items in a lot more securely. About to try my first tumbler engraving this week.