Adjustable air regulator allows you to control airflow 360° directional rear exhaust aims exhaust air away from your face Ergonomically designed, molded handle absorbs vibration and reduces hand fatigue Safety throttle guards against injury Steel safety guard can be rotated 3/8" Arbor 20,000 RPM 1/4" air inlet 2.8 CFM @ 90 PSI (20 SCFM) Backed by a 3-year warranty