SurfPrep’s 3” x 4” Air Sanders have a low profile, compact footprint designed for use on flat surfaces, recessed corners, inside drawer boxes, & profiled moldings, etc. The durable, lightweight nylon composite bodied sanders withstand rugged industrial applications and are excellent for both prep & finish sanding. Both the Air and Electric Ray can be converted into a more “aggressive leveling sander” with the simple addition of a pad saver with SurfPrep Film cut sheets. All OEM parts are available. You will need a VERY LARGE air compressor to run this sander. See video below before purchasing an air sander.