Machine tool

A machine tool, comprising:

• a spindle tube having a longitudinal axis;
• a spindle rotatably mounted in said spindle tube and comprising at its lower end a receiving opening for locating tool holders in their working position;
• a tool magazine for holding tool holders to be inserted into said receiving opening;
• a tool changer having at least two gripper arms for transporting tool holders between a respective transfer position located in the area of said tool magazine and a common spindle position located beneath the receiving opening in said spindle, and vice versa;
• and
• a holding device bearing said tool changer and located on the spindle tube for longitudinal movement with respect to the latter in the sense of a stroke movement, and for rotational movement around the longitudinal axis thereof,
• during said stroke movement a tool holder being transferred between its working position and its spindle position or vice versa;
• and
• during said rotational movement said gripper arms changing position such that tool holders carried by said gripper arms have a common transfer position to the tool magazine.