Oscillating circuit 5 mm for maximum removal rate with good surface quality. Non-slip rocker switch with dead man's function for safe starting and optional speed control. Vario-Tacho-Constamatic (VTC) full-wave electronics for grinding at material-appropriate speeds that remain constant under load. Electronic pre-setting of the desired speed range. Soft start minimizes surface defects during contact. Unique brushless motor for maximum efficiency in grinding, even during continuous operation. Low vibrations for comfortable working during prolonged use. Overload protection safeguards the motor against overheating. Separate main switch prevents accidental starting. Motor and disc brake allow for quick stopping of the machine. Suction hose connection for attaching a versatile vacuum cleaner. Sanding plate with multiple perforations for effective dust extraction and longer lifespan of the sanding material. Easy to maintain thanks to the replaceable cable.