COMET R4 CNC machining center with 5 controlled axes, for machining bars or workpieces made of aluminum, PVC, light alloys in general or steel up to 4 meters long. The machine has independent motor-driven vises that enable the vises to be positioned in concurrent operation time. The 4th and 5th axis allow the electric spindle to be controlled by the N/C continuously in the range -15° to +90° on the horizontal and -360° to +360° on the vertical axis for machining the top face and all the side faces of the workpiece. It is equipped with a 12-place tool magazine on board the X-axis slide, capable of containing a side milling cutter. It also has a traversing work table which makes workpiece loading/unloading easier and increases the machinable section considerably.