I have long wondered and looked up to much I ended up with this machine. I can only say I am absolutely satisfied. I was uncertain whether I should now bring a hammer drill or a hammer drill me. Since I did not want to buy both, I had to decide, and it has made me Metabo easily with this machine. I have now decided on this Bohrhamer because he for smaller hammer actions (eg, drilling holes in reinforced concrete or holes for thick power cables through walls) is sufficient, but with its two aisles and fast enough to perform the tasks of a hammer drill. The weight of this machine is not negligible, however, if one has no problems, it is a super solution.