When we tested this big disc sander, we were more than impressed by its smooth operation. A powerful 1 HP motor drives this heavy-duty machine for all day dependability. Features include a 8 1/4" x 17 1/4" cast aluminum table that tilts from 0 degrees - 45 degrees cast iron base with built-in dust port, 110 volt - 10 amp motor that turns at 1725 RPM and a miter gauge. This really is a super deal!