Abstract: A machine tool for mounting on a lateral or console unit of a transfer machine comprises a spindle unit, drive elements, a number of processing spindles, and a tool exchanging device having a tool support for the receipt of used and new tools, which is movable from a charging position into an exchange position in front of the processing spindles. To improve the removal and charging possibilities for the tools, the tool support is moved from its charging position at the rear of the machine tool over the spindle unit and associated drive elements into the exchange position in front of said processing spindles.