CNC machining centre with 3 controlled axes for machining bars or workpieces made of aluminium, PVC, light alloys in general or steel. It has two modes of operation: either in just one work area for bars up to 7.7 m long or else in two independent work areas. The versions COMET T5 HP, with 2 extra axes for positioning the vices and reference stops, and COMET T5 I, with independent motor-driven vices, enable the vices to be positioned in concurrent operation time when the machining centre is running in double mode. It is equipped with an 8-place tool magazine on board the X axis slide, capable of containing 2 angle machining heads and a side milling cutter, for machining the 5 faces of the workpiece. It also has a traversing work table which makes workpiece loading/unloading easier and increases the machinable section considerably.