Abstract: A tool basic module for use with at least one attachment device includes a drive unit, a main output shaft having a shaft receptacle for at least partially receiving a main input shaft of the attachment device, and a coupling device, which has a mechanical interface for mechanically connecting the attachment device to the main output shaft with respect to driving and an electrical interface for transferring electric power and/or an electric current. The mechanical interface is at least in particular substantially cylindrical and has a plurality of interlocking connection elements, which in particular are uniformly arranged on an outer periphery of the mechanical interface and are provided for torque support of the attachment device.

Abstract: A safety operating device for operating a machine tool, in particular a hand-held machine tool, is disclosed. The device includes at least one operating unit, in particular a dead-man unit, for actuating the machine tool. The operating unit is designed to be moved in a sequence of at least two mutually different actuating movements. The device further includes a pre-activation unit that is designed to enable activation of the machine tool by way of an actuation by the operating unit.

Abstract: A drive base module of a modularly constructed multifunctional handheld machine is configured to connect to at least one attachment device. The drive base module includes at least one connection device including at least one drive-technological interface and/or a data-technological interface configured to connect to the at least one attachment device. The drive base module further includes at least one drive unit configured to drive the at least one attachment device in a state in which the at least one attachment device is connected to the at least one connection device. The drive base module further includes at least one rechargeable battery unit; and at least one information output unit configured to output information to an operator acoustically and/or haptically.

Abstract: A tool basic module for use with at least one attachment device includes a drive unit, a main output shaft having a shaft receptacle for at least partially receiving a main input shaft of the attachment device, and a coupling device, which has a mechanical interface for mechanically connecting the attachment device to the main output shaft with respect to driving and an electrical interface for transferring electric power and/or an electric current. The mechanical interface is at least in particular substantially cylindrical and has a plurality of interlocking connection elements, which in particular are uniformly arranged on an outer periphery of the mechanical interface and are provided for torque support of the attachment device.

Abstract: A drive base module of a modularly constructed multifunctional handheld machine is configured to connect to at least one attachment device. The drive base module includes at least one connection device including at least one drive-technological interface and/or a data-technological interface configured to connect to the at least one attachment device. The drive base module further includes at least one drive unit configured to drive the at least one attachment device in a state in which the at least one attachment device is connected to the at least one connection device. The drive base module further includes at least one rechargeable battery unit; and at least one information output unit configured to output information to an operator acoustically and/or haptically.