This Comb Binding Machine makes it easy to adjust the depth of the margins, so you won't have to worry about accidentally punching holes through your text or graphics. Punch and bind 15 to 18 sheets of paper at a time. With 24 hole punching capacity, you can even bind legal sized documents. And the 24 adjustable die pins allow you to choose how and where you want the punch holes to be. (EX24)