Powerful 12.0 Amp motor Motor is located directly over platen for maximum performance and perfect balance Belt and gear drive system transfers power from the motor to the sanding belt Variable-speed dial is conveniently placed on the handle, allowing belt speed adjustment form 1,000 to 1,500 SFPM Fingertip belt tracking knob for quick, accurate belt adjustments and quick-release belt-change lever Large capacity dust collection bag swivels 360 degree(s)s so it's never in the way during sanding