Professional key cutting machine for flat keys for cylinder and car locks, and cruciform keys. The selection of the jaw side is especially simple, quick and convenient: just press the lifting lever to rotate the mechanism until the most appropriate face is displayed. The specific button to start the supplied brush is a guarantee of safety. Moreover, the protection casing hermetic layout facilitates brushing and prevents swarfs from coming into contact with the transmission mechanisms. Safety, convenience, ease of use, flexibility and rapidity of cutting are the main advantages offered to the user, thanks to Carat’s technological novelties.