A machine tool device in one embodiment is configured to provide open-loop and/or closed-loop control of at least one machine tool function of a portable machine tool. The machine tool device includes at least one detection unit configured to detect at least one characteristic variable of the machine tool and/or of a processing tool arranged on the machine tool. The machine tool device further includes at least one brake unit, wherein at least one brake function of the brake unit is adapted at least partially automatically, and in particular dynamically, depending on the at least one detected characteristic variable.

A machine tool device in one embodiment is configured to provide open-loop and/or closed-loop control of at least one machine tool function of a portable machine tool. The machine tool device includes at least one detection unit configured to detect at least one characteristic variable of the machine tool and/or of a processing tool arranged on the machine tool. The machine tool device further includes at least one brake unit, wherein at least one brake function of the brake unit is adapted at least partially automatically, and in particular dynamically, depending on the at least one detected characteristic variable.

A hand power tool, in particular a battery-operated hand power tool, includes an open-loop and/or closed-loop control unit, and a communication unit, which is connected to the open-loop and/or closed-loop control unit and which has a hand power tool interface for exchanging electronic data. It is proposed that the hand power tool interface be provided to communicate with at least one further hand power tool and/or with at least one hand power tool ancillary device for the purpose of influencing an operating program of the open-loop and/or closed-loop control unit.