The new and improved Rhin-O-Tuff HD 4470 comb opener is now a 14-inch module, capable of binding manuals, books and documents that are 14" in length and 2" thick. The HD 4470 also features an adjustable ring opener control that provides exact book placement. The comb opener uses either stand alone production feet, or can be mounted to any OD or HD series punch. Get yours today.