Bought one of these last week but took it back as the chuck didn't seem straight. Picked up another one and it seems the same. Have tried two different bits and basically the tip seems to move round in a small circle rather then keep on point (if that makes sense). Have also tested it in both drill and hammer mode... Is this normal? The drill gets through stuff really well, it's just that you end up with a hole bigger than the bit size...... Is this perhaps the way SDS drills work? Never had one before.... Or is it just that the drill is cheap?