The removal rate of the grinding cup is very good and you get really fast progress. It can be run well and does not seek self-direction. The dust is enormous, which is why I absolutely recommend a suction. Grinding elements have not been solved, but I go with the lowest number of revolutions (2800 U / min.) And dip slowly into the material. The cup wheel makes a high impression, it did not save on material, it runs without imbalance and is processed very precisely. Strong buy recommendation from me.
