Gbc C450E Electric Binding Machine Binder COMBBINDDescriptionSpecificationsShipping The combbind C450E is ideal for the average office with medium binding requirements. Paper punching is electronic, making the binding process even easier. The C450E combines a punch capacity of up to 25 80 gsm sheets with a binding capability of up to 450 sheets, binds A3 portrait, A4 or A5 sizes and is equipped with features such as auto centering and a paper separator Binds up to 450 sheets with a 51mm comb Document