Ray Foster AG03 High Speed Alloy Grinder, Single Unit. 10,000 and 24,000 RPM belt controlled speeds with new powerful motor. Adjustable spindle working height. Heavy duty, 1/4 HP capacitor start motor in a totally enclosed housing. 2.5" suction port for connection to dust collector system. Power output connection for automatic on/off of dust collector. Motor is UL-recognized and CSA-certified for electrical safety. Dimention: width 10.25", length 11.75", height 11". 115 volt 50/60 Hz standard.