High quality & This Air Angle Sander is made of high quality materials which is with Low air consumption, low noise and long service life. The eccentric double-rotation polishing method makes the polishing effect more uniform and smooth. High quality & This Air Angle Sander is made of high quality materials which is with Low air consumption, low noise and long service life. The eccentric double-rotation polishing method makes the polishing effect more uniform and smooth. Convenient This Mini Air Angle Sander is small in size, light in weight and easy to operate with one hand. With the adjustable valve at the air inlet, you can change the airflow to control the speed of the polishing. Rear exhaust allows the sander to cool quickly and keep it working for long periods of time.How to change the 2''pad to 3''pad? please put the fixed pin entered into the little hole next to the warning label and turn the 2-inch pad,so you can change the pad to 3inch. Widely used: Economical high-speed sander for small jobs and hard-to-reach places. This versatile sander is suitable for light sanding, feather edging and rust removal, providing versatility for any task at hand. It is widely used in hardware, furniture, plastics, paint grinding and polishing products. High stability: This Air Angle Polisher has high stability with air outlet 1/4" NP, no-load speed of 16000rp. It is very suitable for repairing dull paint, removing rust or fine scratches to show beautiful gloss.