The equipment comprises a main support structure fixable close to the machine and in which a laser source is mounted, and a receiver for providing electrical signals indicative of the strength of laser radiation received. The receiver, in use, is located facing the source at a predetermined distance therefrom so that a field of measurement is defined between them across which the laser beam extends and in which a tool to be measured is movable so as to intercept the laser beam. The receiver is carried by an auxiliary structure connected to the main support structure and movable relative thereto between a retracted rest position, in which the structures present a minimum overall bulk and an extended working position in which the receiver is located facing the source.