Compact electric two-hole punch drills up to 12 sheets of 20 lb. paper quickly and quietly. Punch 1/4" diameter holes in a standard 2-hole pattern (2-3/4" centers). Automatic on and off saves effort and time. Large capacity for the paper chip pan avoids frequent emptying. Two-hole punch also features an adjustable paper guide reverse motor dejam mechanism and nonskid feet. Either plug into an outlet or use six AA batteries (sold separately).