Heavy Duty Manual Single Coil Binding Machine 46 Punching Hole Photo Album Paper Electric Binder Puncher Machine ,Easy to Operate

With punching lengthening structure, you can punch more than A4 paper, such as A3, F4, B4 and so on Maximum binding capacity: 250 sheets of electric binding Number of holes: 46 Hole shape: diameter 4mm round hole (commonly used in China) or 4*5mm oval hole (commonly used in the United States) Hole distance: 6.35mm (common in China) or 6.29mm (common in the United States)