Characteristics: -on purpose developed for allowing the passage of an elevated flow of air, they guarantee a high adherence and an optimal resistance to the cut. Material: - plotted not impregnate fabric of special latex. Fields of employment: - particularly recommended for the systems of cut with aspiration to empty for the cut of any material. Strength's points: - double duration of the blades, - perfect and clean cut up to the end, a lot of grip, - doesn't send forth dust. Density: 48.