This ebayer asks for specific size punch needed and will quote price.
http://www.ebay.com/itm/Hollow-Punch-Set-Hand-Tools-Hole-Punching-Leather-gasket-CARBON-Steel/300947513030?_trksid=p2047675.c100005.m1851&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D23490%26meid%3D7d8aa9714c38407e810eb1cbeb912fde%26pid%3D100005%26prg%3D10073%26rk%3D3%26rkt%3D6%26sd%3D251487517794&rt=nc
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