"2.3 AMP motor of the electric sander sands at 14,000 OPM. Rubber overmold texture of the 1/4 sheet sander will provide smooth and comfortable control while sanding. Improved paper clamp features for better paper retention. Locking dust-port system that allows the user to lock vacuum hose up with the sander. Reduced overall height of the sander to get the user closer to their work. Separate counterweight design reduces vibration. Rubber dust boot over the switch to protect against dust ingestion for longer switch life. Dust port is designed to fit directly to the DWV010 or DWV012 dust collectors. To attach dust port to other vacs with 1 1/4-inch hoses use DWV9000 universal quick connector."--from amazon.com.