Mainly used for ground polishing on large or medium roads. It can grind the concrete surface layer and epoxy mortar layer. Equipped with a vacuum cleaner power socket, the power cord of the vacuum cleaner can be directly connected to the grinder. Avoid the need for two power cords when working. The edge of dust can be polished, and the surface of concrete can be effectively polished. While ensuring the flatness of the ground, it also improves the adhesion between the material and the ground.