Staple Size: 26/6 or 24/6 Staple Capacity: For Staple 26/6: 20 sheets of 20 lb paper For Staple 24/6: 18 sheets of 20 lb paper Hole Diameter: 5.5mm Distance Between Holes: 70mm or 80mm Width From Edge: 12mm Punch Capacity: 14 sheets of 20 lb paper Power: 6Ħ°AAĦħalkaline batteries or 9.0VDC 1.0A