According to its website:
Ideal where paved surfaces need to be roughened, grooved, cleaned, or where layers need to be removed. The VA 30 S‘ infinite variable depth adjuster allows to adapt perfectly to every surface. The vibration absorption system and easy handling make the job more pleasant and efficient. It allowes the VA 30 S to glide across the hardest challenge as a heavy duty surface preparation machine. Various cutters can be fitted to suit different applications.