This mandrel is indeed much more convenient than the original game tie rods - not just to change the drill, but also to spend, for example, the wire brush to cutting plate (two utensils in different diameter) .
The adaptation is very simple, but somewhat confusing: one is tempted to strong tighten the chuck to the drill with a 10mm, and it is certainly not what to do because the clamp is double reality: by screwing, it blocks both the utensil to the mandrel and the mandrel with the drill.
A purchase without regret in the end.