Unfortunately, the chuck is not running 100% around with me. It "wobbles" a little. With a 30cm bit extension this tolerance makes it quite noticeable. In my opinion it should not give something, at least not with a wrench of almost 300 euros! Even my old hardware store wrench has only around 15% running cost so much better. Too bad!
Become claim the device via Amazon and hope that the replacement device is better and sign up then back again.