First of all: The processing of the drilling machine is impeccable and nothing to complain about. Everything made a very solid impression and the unit was super comfortable to hold. I was glad really forward to working with her.
The powerful gear in the first "transition" is impressive but also the second "transition", the device is not going to stop and not burrows into deep and almost of its own accord in the concrete wall, if there ....
Now the downside: ... the keyless chuck would have problems!
Again and again slipped in the drill chuck or even stopped and thus hang in the wall. At first I did not think I could possibly not excited the chuck correctly but unfortunately it was not like that. Also, I have several drills used ... directly from BOSCH ... but unfortunately without success. I could easily drill ... no question, however, with stronger counter-pressure from the concrete was always the same to watch ... the drill sat suddenly no longer fixed in the chuck and slipped out ....! So what can I times quickly backfire! For this reason, I had to send back the device unfortunately, because I can not accept this issue permanently. Very sad ... because I now have to look for a new machine out.