And the tool. Not sure why size those buggers are, but my guess would be 3mm. So something like this might work if the size is right. Lot of money I suppose for a little job.

http://www.ebay.com/itm/Hand-Hole-Punch-loose-leaf-book-id-card-hole-diameter-2-3-4-5-6mm-0010602-/171211030156?pt=LH_DefaultDomain_0&var=&hash=item27dcf8fe8c