Used it to remove tile backing glue from my kitchen floor

All I can say, What a time saver.

I grind some hard concrete, grinding very fast

Happy with second order from this company

Works well. Better than I expected.

The grinding head was exactly what I needed to grind and smooth the rough concrete on my garage floor.

This thing eats through concrete. I can't speak to durability yet, but I've used it for small concrete jobs around the house (I don't have too many), and it still works great