An electric power tool for processing a substrate is disclosed. The electric power tool includes a tool which is designed to be rotatable around a rotational axis, a motor assembly having at least one motor which rotates the tool around the rotational axis, a motor housing having at least one receiving area for the at least one motor, a cooling element for cooling the at least one motor, and an electronic assembly having at least one electronic component to be cooled. The cooling of the at least one electronic component to be cooled is carried out via the motor housing.