The drill is sturdy and well-traded, but a little too heavy for frequent hand operation. The chuck can be good and easy to use and keeps the drill accurately and bombproof. The drilling is finely adjusted, the machine also has enough power for the occasional hole in concrete. What has not been solved perfectly: The auxiliary handle is detected and solved by rotation. When you lift the machine by the front handle to solve more grip partially (1/4 turn, machine hangs down) - and then all the weight hanging on a not very tight grip. To me she is so not yet fallen, but this is possible - on construction sites, in my view, an unnecessary source of danger (ladder, scaffolding, ceiling work). In addition, the distance rod has no degree markings, here you have to additionally play with the ruler and mental arithmetic if you want to comply with a predetermined depth. The build quality is beyond doubt, however, 1a industrial quality.