tool portion in the form of a lower tool 5 the upper tool 4 is held by an upper tool holder 6 and the lower tool 5 is held by a lower tool holder 7 the upper tool 4 and the lower tool 5 are arranged on opposite sides of the metal sheet 2 to be processed a workpiece e g the metal sheet 2 to be processed is supported on a workpiece table 8 and is moved relative to the tool 3 with a coordinate guide 9 during workpiece processing the upper tool 4 is movable along an application axis 11 relative to the lower tool 5 via a press drive 10 the tool holders 6 and 7 are each provided with a respective rotary tool drive 12 the upper tool 4 and the lower tool 5 can be rotated via the tool drives 12 in a controlled manner about a rotational axis 13 of the tool which is identical with the application axis 11 all of the drives of the machine tool 1 are controlled by a central numerical control unit 14 at the commencement of workpiece processing the metal sheet 2 is positioned between the upper tool 4 and the lower tool 5 by the coordinate guide 9 the upper tool 4 is then lowered along the application axis 11 by the press drive 10 until the metal sheet 2 is acted upon on its two sides by the upper tool 4 and the lower tool 5 the action on the metal sheet 2 by the upper tool 4 and the lower tool 5 therefore takes place along the application axis 11 starting from.