This pin set is specifically designed for use with the Rhin-O-Tuff HD6500, HD7000, HD 7700(H), and HD7725(H) Punch dies. These models are robust, 14-inch binding punches powered by a heavy-duty motor. It features the Rhin-O-Tuff EZ change die system, and each die is equipped with the swing-away die pin retainer, allowing for easy removal and replacement of punch pins.