Neiko 30070A 7" Heavy Duty Pneumatic Air Angle Sander | 1/4" NPT Air Inlet | 6 CFM, 90 PSI | 4500 RPM Seven inch angle sander has a free air speed of 4500 RPM and is ideal for roughing body filler, buffing, removing rust or smoothing welds Includes heavy-duty ball bearing construction that provides reliable, vibration-free performance Lightweight, balanced design helps to reduce fatigue and muffled exhaust helps keep decibel level low Sander uses a standard 1/4" NPT air outlet to an air compressor and can be used for buffing, sanding or grinding Auxiliary side handle can be switched for right and left hand operation allowing for ambidextrous use