1, Angle grinder can be used to grind metal, stone, wood and other materials. According to different uses, the angular grinder can be divided into many models, including electric angular grinder and pneumatic angular grinder.
2. Grinding machine is a tool, which is mainly used to grind and polish materials such as stone and glass. According to different uses, grinders can be divided into many models, such as table grinder, portable grinder, vertical grinder and so on.