Unfortunately, I had let myself be blinded by the quite good reviews. Have thus 6 Concrete paving slabs cut. In the 5th plate I have already tried to counteract with water cooling the overheating, but without much success. It was also not the case that I have the plates cut in direct succession. There were always a few minutes rest between. So as I said, after 6 plates the plate was gone. Nothing was more. Therefore, for concrete could not be recommended. Let's see what the next slice is good.