USA HP: 2.25, Speed (RPM): 5,00, Amps: 13, Disc Diameter (in.): 7 or 9, OPM: 5,000 On/Off AC/DC switch Replaceable armature pinion gear for less costly repairs Recessed spindle lock for quick accessory changes Sander may be converted to grinder, using wheel guard Heavy-duty urethane tool rest protects tool when not in use