A drive unit (8) for driving a tool. The drive unit (8) has at least one first drive module (18) comprising a motor (12) and a wheel (32) driven in a rotary manner around an axis (16) by the drive module (18). The drive module (18) comprises a magnetic ring (22) surrounding the wheel (32), with which the wheel (32) is connected in a magnetically force-transmitting manner and with which the motor (12) is connected in a mechanically force-transmitting manner.
