15-Sheet Duo Electric/Battery Punch, Two- and Three-Hole Fixed Position Sides, Sold as 1 Each Electric/battery-operated two-three-hole punch with 15-sheet capacity and auto-unjamming/reverse feature. Easy-to-use battery or electric punch. Battery works for up to 3,000 punches. No adjustments to switch between two- or three-holes. Auto-unjamming/reverse feature makes use a breeze.