Abstract: The present disclosure relates to a machine tool for machining workpieces, particularly a grinding machine, and to a method for positioning a spindle head of such a machine tool. The machine tool comprises a workpiece holder for receiving a workpiece, and a spindle head for receiving a tool, particularly a grinding wheel, wherein the spindle head is movable by motor with respect to the workpiece holder, wherein a handle is arranged at the spindle head and comprises at least one detector that is arranged to detect an impact on the handle, and wherein a control device is provided that is arranged to move the spindle head in at least one operation mode by motor in a defined manner dependent on the detected impact on the handle.