The machine is designed for sanding drywall construction, inner and outer surfaces of the ceiling and walls, the floor and remove the residue, paint coatings, coverings, adhesive and loose platter. This is a powerful heavy duty industrial drywall sander with vacuum and led light. It's comfortable to use, with a soft grip handle and controllable speed button for adjusting speed from 1200 to 2500 rounds per minute. It comes with a hose, 6 sanding discs, and easy to carry dust bag. The drywall sander has an 3 LED angle adjusted light with independent switch which allows you to work in dark environments. The detachable brush segment comes off to allow easy access to corners and edges. Power: 710 W. Voltage: 110V 60 Hz. ETL Approved. Sanding pad diameter: 7 Inches. Sandpaper Diameter: 7.5 Inches. Vacuum tube diameter: 32 Millimeters (1.25 Inches)