1. planetary counter rotation system with 4pcs planetary grinding plates

2. completely gear driven system for superior durability

3. Can work in dark area with LED light

4. The handle can be adjusted 180 degree forward or backward for comfortable height

5. Pretreating and levelling concrete surface for epoxy coatings

6. Grinding and polishing concrete, marble, granite, terrazzo with metal and resin diamond tools

7. Removing painting, glue, epoxy, urethane and mastics coatings with PCD tools