Eccentric sander Eccentric sander with dust collector and grinding wheels Another name is orbital sander. The working unit of this tool is a round sole on which the grinding wheel is fixed using the Pattern: Textile fastener. Grinding and polishing is carried out by two types of simultaneous sole movements: Orbit rotation. Rotation around its axis. The grinding wheel and the sole, as with the vibration grinder, have several holes for removing dust from the working area into a dust collector or vacuum cleaner. The main purpose is grinding and high-quality polishing.