3M(TM) random orbital sander. Clean sanding Hookit pad, filter bag adapter and clean sanding filter bag included. Precision balanced for smooth operation. Takes dust management to the next level with powerful self-generated vacuum tools. Proprietary clean sanding system with improved filter bag. 6-inches tool diameter by 5/16-inches orbit diameter. Maximum resolution per minute: 12000. 0.28 horsepower motor. Measures 6-15/32-inchse length by 3-21/64-incehs height.