Chicago Pneumatic 865S 7" Heavy Duty Air Vertical Sander. Automatic release throttle with positive stop action. Muffled handle exhaust to vent air away from work surface. Rugged 1 hp motor. Double idler planetary gearing. Applications: roughing in body filler, weld smoothing, paint and rust removal. Free speed - 5000 rpm. Specifications: paper size - 7", cfm - 6, hose size - 3/8", free speed - 5000, motor - 1 hp.