Machines for the surfacing of spectacle lenses made from mineral glass or organic glass, as well as parts thereof, namely, CNC (computer numerical control) controlled machines for polishing of ophthalmic surfaces of ophthalmic lenses; machine-driven tools for polishing spectacle and ophthalmic lenses and parts and accessories thereof, namely, form machine tools for polishing optical parts with bound and loose abrasive, polishing base, polishing pads, polishing discs, polishing foils, polishing cloth and polishing felt; machine parts, namely, machine tool holders for mounting polishing tool, machine tool holders in the nature of work piece holders for clamping of optical lenses, and work piece chucks for polishing machinery in the nature of collet chucks, and machine tools holders in the nature of work piece holders with membranes