This delta sander is designed for professional use. The radius of the housing has been reduced to a minimum for easy handling, and the soft grip surface ensures maximum working comfort. Integrated vacuum technology dust suction is a unique technical solution for a cleaner, healthier working environment. Like a home vacuum cleaner it sucks air into the dustbox, instead of blowing it in. This prevents clogging of the dust channels, which often happens with conventional dust suction systems on delta sanders. The transparent dust collection box shows clearly when it needs to be emptied.