This is a Craftsmen Commercial Grade belt and Disk Sander. It is model 351.225930 and features a 6" x 48" Belt and a 9" disk. The belt runs at 2700rpm and the disk is 3500 rpm. The motor is 1 1/2 HP and the machine weighs 150lb.+ This machine is all cast iron and steel, no plastic. It has been used only several times and comes with its original supply of disks and belts. You will need to bring a helper, as it is very heavy.