In reinforced concrete, which was tested with a 125mm wheel and an 18v battery, 5Ah, it struggled a bit. At one point, it sparked and turned black. The wheel, although battery-powered, has no issues with performance. The task involved creating "lines" in cement, similar to those made by contractors on the road when, for example, they want to pass optical fibers, and then removing the intermediate section to fit a garage door. It proved useful for "straightening" the channel that was created, although it is advisable to avoid such actions. Anyway, I decided to try it in such a case.