The CNC end milling machine WLS has been designed to perform specific milling operations on PVC profile edges. The peculiarity of these operations allows to obtain an innovative angle coupling by re-proposing the jointing of the wooden frame at 90°. The aesthetic effect is also combined with the advantage of no longer having to carry out cleaning on this side since the coupling itself is finished after the normal welding operation. . The profiles are clamped in pairs in two special clamps where they are machined as mullions and transoms, the different types of machining are managed by a series of shaped tools housed on a special tool magazine. The machine can manage the end machining both on the internal and external side according to the needs of the customer.