IBICO IBIMASTER 500 COMB WIRE HEAVY DUTY MANUAL BINDING MACHINE.
Here are the specs for the Ibico ibiMaster 500 (also known as the Ibimaster 500) with regard to binding & punching:
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Punching capacity
• Up to 20 sheets of 80gsm paper per punch. 
• Or 6 sheets of PVC covers. 
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Binding capacity (how many pages / sheets you can bind)
Type Capacity (for 80gsm paper)
Plastic combs ≈ 500 sheets 
Wire / Wire-O ≈ 125 sheets 
ibiClick combs Approx 95 sheets (with 12 mm ibiClicks) 
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Number of holes / hole formats
• It can punch 21 holes (for the loop-wire / comb around A4 / 315mm width). 
• Also supports 34 round holes in the 3:1 wire-loop style. 
• Some of the 21 holes include 7 retractable pins (so you can adjust for different paper sizes or to avoid punching into like page margins).