Perfectly built for manual operation. For reduced fatigue when carrying out overhead sanding work and a good feeling on edges, as well as convenient operation in any position. The new ETS EC 150. At just 4 1/2" (116 mm) high and with a brushless EC-TEC motor and ergonomic housing geometry with perfectly balanced centerof gravity. And with additional innovative details such as automatic dust control, integrated sanding pad brake and the unique Vibration Control System for added health benefits.