Adjustable three-hole punch drills through 34 sheets of 16 lb. paper or 28 sheets of 20 lb. paper. Design offers heavy-duty steel construction, adjustable paper guide, measurement scale & lever action for easy punching. Removable chip tray collects chads for easy disposal. Fully adjustable punch heads allow paper sizes up to 15". Scuff-resistant & slip-resistant rubber feet keep the hole punch in place.