1. Aluminum gear cover is firmer and more durable than plastic one.
2. With LED light, suitable for poor visibility condition
3. Polishing pad can be easily dissembled
4. Longer handle, 1600mm, suitable for more work
5. Good dustproof of switch, long life span
6. Telescopic handle, convenient operation
7. Good design of speed controller, Long life span even with dust.
8. 710W strong power, can be used to sand on 3 meters height wall. Design for heavy duty.