GBC WireBind W25E Electric Wire Binding Machine Dark Grey 4400427 With electronic punching built in, the WireBind W25E makes binding even easier. It has a host of intelligent features including document separating, auto centring, wire closure control and even a foot pedal option. Punches up to 25 x 80gsm sheets at once and binds up to 125 x A3 landscape, A4 or A5 sheets using a 14 mm wire.