Best in Class Spot Weld Removal Rate 2 Speed Adjustment Settings (High 3,600 SFM | Low 1,800 SFM) Forward & Reverse Lock-on Button Variable Speed Trigger Tool-Free Arm Rotation 360 Degree Arm Rotation Tool-Free Belt Change Belt Alignment Adjustment Replaceable Contact Wheel Includes: (2) 60 Grit 3/8" x 13" Sanding Belts