The 900W Rotary Polisher Che-c5855 has double shot rubberized grips and ergonomic platpus head, provide a better level of comforbility while in using.The design of side cover makes user easier to change carbon brush. The use of constant speed system can let the CHE-C5855 under the condition of the load speed stays the same.And its auto shut-off carbon brushes prevents motor damage.This polisher sealed 100% Ball-Bearing Construction Provides longer life.