Electric punch doubles as a stapler, to help you be more productive. Simple, push-button operation for simultaneous two- or three-hole punching and stapling. Jam reverse knob easily clears jams, and the alignment guide helps increase accuracy. Use with Swingline S.F. 4 Premium Staples. Sheet Capacity: 24; Operating Method: Electric; Number of Holes: 2-3; Hole Diameter: 9/32″.