By Akuschrauber She is very satisfied, this keyless chuck, however, is a bad design. It wobbles like mad .. so you get precisely in the area in which the fodder is to receive the drill hole certainly no ordinary way. Must We'll see what it is exactly that it wobbles so. At first glance, it was because the dependent all over the bit attachment to a thread and the thread was not cut precise enough.
My tip, rather hands off, or buy and invest and rework a Bishen time :-)