Abstract: A milling machine with a rotating drivable machine tool spindle perpendicular to a work piece stage slanting downward and away from the front side of the machine bed displaceable along the Z-axis that may be displaced via a first carriage along the Y-axis, and via a second carriage along the X-axis on guides mounted to the machine bed. A chip collection chamber is provided behind the work stage surface when in the operating position. The guides for the second carriage are provided on opposing struts of a portal frame parallel to the work tensioning surface, that is connected on its front side by means of lateral front support areas and on its rear side directly with the machine bed.