Abstract: The invention relates to a tool holder (10) which is embodied for rotation around a tool holder rotation axis (D) and which comprises at its one axial longitudinal end (10a) a tool segment (14) for receiving a tool, and at its other axial longitudinal end (10b) a coupling segment (16) for torque-transferring coupling to a machine tool (78), a measurement apparatus (28) for sensing data relating to the operation of the tool holder (10) being provided on the tool holder (10), which apparatus encompasses at least the following components:—at least one sensor (30, 32, 34, 36) supplying a sensed signal;—a signal transfer apparatus (38) for transferring a measured signal;—an electrical circuit (40) connected in signal-transferring fashion to the sensor (30, 32, 34, 36) and to the signal transfer apparatus (38); and—an energy supply apparatus (42) that is connected to the signal transfer apparatus (38) and to the electrical circuit (40).

Abstract: The invention relates to a tool holder (10) which is embodied for rotation around a tool holder rotation axis (D) and which comprises at its one axial longitudinal end (10a) a tool segment (14) for receiving a tool, and at its other axial longitudinal end (10b) a coupling segment (16) for torque-transferring coupling to a machine tool (78), a measurement apparatus (28) for sensing data relating to the operation of the tool holder (10) being provided on the tool holder (10), which apparatus encompasses at least the following components:—at least one sensor (30, 32, 34, 36) supplying a sensed signal;—a signal transfer apparatus (38) for transferring a measured signal;—an electrical circuit (40) connected in signal-transferring fashion to the sensor (30, 32, 34, 36) and to the signal transfer apparatus (38); and—an energy supply apparatus (42) that is connected to the signal transfer apparatus (38) and to the electrical circuit (40).