The Carl Heavy-duty 3-Hole Punch allows you to drill up to 40 sheets of standard paper weighing up to 20 lb (9.07kg). A built-in paper guide ensures precise positioning of the paper. It has a large capacity waste tray to collect the clippings. An oversized handle ensures easy open-handed punching. Being foldable, the handle can be efficiently and safely stored. The punch has a heavy-gauge steel construction. Provided with a 3-hole pattern, the punch is ideal for 3-ring binders.