The hammer drill fully meets my expectations, and works well in the private sector. The unit arrived today and was used directly for the demolition of a wall, here the power of the chisel function enough completely. There have been carried out to test a few more holes in reinforced concrete up to a drill diameter of 32, again presented the performance as a hammer drill completely (all with SDS DRILLS professional quality!). The additional drill chuck has not been tested, however, makes no very durable impression. However, another type of drill is more appropriate for drilling with standard drill chuck because the hammer drill for finer precision drilling is far too heavy during operation. This machine is built for light chiselling and drilling with large drilling diameter in reinforced concrete and fulfills these tasks with flying colors. I am very happy with the product and very fast delivery via Amazon (36 hours)!