280 Watt variable speed motor adjusts from 8;000-12;000 orbits per minute; providing ideal sanding speed for all materials. Low vibration allowing for extended usage without fatigue. Built in dust extraction port allowing direct connection to dust extractor; or DEWALT Air Lock system. Textured anti-slip top and body grip provides ultimate comfort and control during use. Dust-sealed switch prevents contamination. Controlled finishing system controls pad speed and minimizes gouging during start up. Sealed 100% ball-bearing construction provides longer life. Compact palm grip design. Uses hook and loop paper for consistent adhesion and fast changing.