Rear, adjustable air regulator allows you to control airflow Safety throttle guards against injury Ergonomically designed, molded handle absorbs vibration and reduces hand fatigue Rear exhaust aims exhaust air away from your face 10,000 Strokes per Minute 1/4" Air Inlet 1.8 CFM @ 90 PSI (13 SCFM) Backed by a 3-year warranty