A tool system comprising a machine tool and a multi-purpose hoover, in particular for use with an electrically driven machine tool, comprising: - an electric drive for driving a fan unit, and - a power supply for supplying electric power to the electric drive of the multi-purpose hoover, wherein the power supply includes an electrical cable connected thereto for allowing a user to connect the power supply to an AC power source on a case-by-case basis, and at least one rechargeable battery connectable to the power supply for providing DC power to the power supply so that a user can use the multi-purpose hoover even when the power supply is not connected to an AC power source via the electrical cable, wherein the power supply of the multi-purpose hoover further comprises at least one electrical connection through which a powered machine tool can be connected to the power supply of the multi-purpose hoover by means of a cable, such that the power supply of the multi-purpose hoover is capable of supplying electrical power for simultaneous operation of the multi-purpose hoover and the connected machine tool to both the electrical drive of the multi-purpose hoover and the electrical drive of the connected machine tool, regardless of whether the multi-purpose hoover is powered by a connected battery or by an AC power source, the power supply having at least one further electrical connection for at least one rechargeable battery via which it is capable of charging the electrically connected battery, irrespective of whether the multi-purpose hoover and possibly a machine tool connected thereto are in operation. - an electric drive for driving a fan unit, and - a power supply for supplying electric power to the electric drive of the multi-purpose hoover, wherein the power supply includes an electrical cable connected thereto for allowing a user to connect the power supply to an AC power source on a case-by-case basis, and at least one rechargeable battery connectable to the power supply for providing DC power to the power supply so that a user can use the multi-purpose hoover even when the power supply is not connected to an AC power source via the electrical cable, wherein the power supply of the multi-purpose hoover further comprises at least one electrical connection through which a powered machine tool can be connected to the power supply of the multi-purpose hoover by means of a cable, such that the power supply of the multi-purpose hoover is capable of supplying electrical power for simultaneous operation of the multi-purpose hoover and the connected machine tool to both the electrical drive of the multi-purpose hoover and the electrical drive of the connected machine tool, regardless of whether the multi-purpose hoover is powered by a connected battery or by an AC power source, the power supply having at least one further electrical connection for at least one rechargeable battery via which it is capable of charging the electrically connected battery, irrespective of whether the multi-purpose hoover and possibly a machine tool connected thereto are in operation. wherein the power supply includes an electrical cable connected thereto for allowing a user to connect the power supply to an AC power source on a case-by-case basis, and at least one rechargeable battery connectable to the power supply for providing DC power to the power supply so that a user can use the multi-purpose hoover even when the power supply is not connected to an AC power source via the electrical cable, wherein the power supply of the multi-purpose hoover further comprises at least one electrical connection through which a powered machine tool can be connected to the power supply of the multi-purpose hoover by means of a cable, such that the power supply of the multi-purpose hoover is capable of supplying electrical power for simultaneous operation of the multi-purpose hoover and the connected machine tool to both the electrical drive of the multi-purpose hoover and the electrical drive of the connected machine tool, regardless of whether the multi-purpose hoover is powered by a connected battery or by an AC power source, the power supply having at least one further electrical connection for at least one rechargeable battery via which it is capable of charging the electrically connected battery, irrespective of whether the multi-purpose hoover and possibly a machine tool connected thereto are in operation.