or the first time, it will be possible to monitor machining processes at high resolution at the tool and to control cutting parameters in real time. The required acceleration sensor and electronics are integrated into the toolholder without affecting its interfering contour and other characteristics. The iTENDO is capable of seamlessly recording the metal cutting process, monitoring previously defined exact limit values and, in the event of irregularities, enabling real-time adaptive control of the speed of rotation and feed rate, among other measures. Equipped with a sensor, battery, and transmitting unit, the intelligent toolholder records the data at the tool and transmits it wirelessly via Bluetooth to a receiver unit in the machine room, where it is forwarded by cable to a control and evaluation unit. This makes the system fundamentally different to other solutions for process monitoring. While monitoring the current input of the spindle only permits diffuse signals on vibration behavior, the intelligent tool mounting provides precise process data. In pilot applications, the intelligent mounting has proven performance for milling, drilling, countersinking and even deburring.