Giganet Polishing disc for fiber optic cables based on LC connectors. Once a fiber optic connector has been crimped and cleaned, the polishing process must be started. These discs are essential for polishing the central cannula of a fiber optic connector. The central cannula should be inserted in the hole of the disc and start drawing an 8 on the polishing films. With this tool the polishing is perfect, precise and perpendicular to the cannula.