Metabo Marathon motor with patented dust protection for a long lifespan. The Vario-Constamatic (VC) electronics with a robust shaft drive allow for material-appropriate speeds that remain nearly constant under load. The setting wheel enables speed pre-selection. The electronic overload protection ensures durability. The restart protection prevents unintentional starting after a power interruption. The electronic safety shutdown of the motor activates in case of tool blockage for safe operation. Carbon brushes are included to protect the motor. The motor can be upgraded with a milling attachment (accessory) to become a milling machine. It is suitable for driving bending shafts.