After a week of analysis, I bought this tool and am quite satisfied. In my opinion, this is the best screwdriver in its class. In my copy, the chuck runout is completely absent, and even on a 45 cm drill, it is negligible. Someone does not like the fact that the start button does not work at the very beginning of the journey and it is difficult to turn on slow speeds. I didn't have any problems with this at all. I believe this gap in response to pressing is made on purpose. So that you feel that the button is pressed with your finger and if you continue to press further, it will already turn on. It would be worse if you just touched and the screwdriver already gave out something, it’s not clear at what speed.