I was in no hurry to write a review, as I had to hang an additional dryer in the laundry-drying room. And so the moment came, I inserted a 6 mm drill and started drilling in the concrete ceiling. I will make a comparison with an existing puncher with an impact energy of 2 J. First impressions; 1) Drill slowly. 2) Drills very quietly. 3) Vibrations transmitted to the hand are minimal. As a result, I drilled four holes 60 - 70 mm deep, the punch was barely warm. The 2Ah battery indication showed minus one division out of 4x. Bottom line: A good, quiet toy that does not cause problems to neighbors in the apartment and floors. No wires. For home shelves and paintings, that's it. Would recommend this puncher? rather yes than no!