After I had worked a lot with the GSR and was totally satisfied me a lot of GSB from a friendly Ekekrtroinstallateur on who was barely bigger (only 2cm) but was it equipped with ne in stormy weather. I tested the unit long before I bought it, I have to admit that I'm impressed. If you absolutely bored me in the concrete, the hammer drill function is sufficient to, for example, to install an anchor in the masonry. At first it seemed as if the chuck wobbles, which is why I had the GSB returned almost. But it is actually just the outer shell of the BF. All in all, a top device ...
