Bosch 3727DVS 6-Inch Variable Speed Dustless Random Sander Powerful 3.3-Amps, 4,500-12,000 OPM ensures fast, smooth results on all surfaces Multi-purpose tool featuring eccentric orbit plus rotation Variable speed dial Sets optimal operating speeds for workpiece and sanding task Constant ResponseTM Circuitry - -Maintains constant speed under load -Overload protection Integral pad dampening system prevents swirl marks providing consistent finish