1/4" 3-piece collet Safety throttle guards against injury 360° directional exhaust aims exhaust air away from your face Rear, adjustable air regulator allows you to control airflow Ergonomically designed, molded handle absorbs vibration and reduces hand fatigue 20,000 RPM 1/4" air inlet 2.2 CFM @ 90 PSI (16 SCFM) Backed by a 3-year warranty