Process paperwork in large work rooms or small cubicles with this quiet and portable electric two-hole punch. An adjustable paper guide ensures this punch makes accurate holes every time, and a high-capacity paper chip pan reduces downtime. This MASTER two-hole punch works with an AC adapter or four AA batteries for maximum flexibility and features an automatic on/off function to preserve power. Easy-to-use electric two-hole punch suits any executive, administrative, or home/office user. Punch heads deliver clean punching of 12 sheets of paper at a time. Punches circular holes. Punches 0. 25"Dia. holes in a standard two-hole pattern (2. 75" centers). Featuresdesign. Adjustable paper guide for easy setup. Comes with AC adapter or uses four AA batteries (not included). Automatic on/off. Large-capacity paper chip pan. Includes reverse motor dejam mechanism. Organize documents quickly and efficiently with this MASTER electric two-hole punch.