Bosch 3107DVSK 5-Inch Dustless Random Orbit Sander/Polisher Kit Powerful 3.3-Amp motor, 4,500-13,000 OPM ensures fast results on all surfaces Variable speed dial, match speed to workpiece and task Random orbit sanding action for aggressive stock removal and swirl free finishing Trigger with lock-on button for extended periods of use Multi-position handle design for comfortable operation, folds flush for standing in tight spots