10,000 RPM; 3/16″ OrbitLow weight (2.3 lbs) and low air consumption (2.5 CFM average); Lubrication free air motor with patented double sealing to prevent dust contamination; Isolated motor design reduces vibration to 1.8 m/sec2; Internal silencing system reduces noise level to (82 dBA); Built-in thumb operated speed regulator for instant control; Rubberized comfort palm grip; Low profile only 3-3/4″ in height