Rhin-O-Tuff has the goods when it comes to sturdy binding machinery. And their plastic comb systems are no different! We offer four different varieties of systems, from large office occasional use to ultra duty. Their machines are anti-jamming with reversing capabilities. Sheet punching capacity ranges from 20 to 80 sheets of 20lb paper, so you can really speed up your binding processes with these. They're all made with a heavy duty construction, so they won't break down on you. Get punching and binding with the toughest of them all--Rhin-O-Tuff!