I am installing a vessel sink faucet in a new counter top. I have the spec sheet for the faucet and i does not indicate what size hole to drill. I phoned the company and they said they do not recommend a size, and that my installer will be able to tell from the spec sheet. Unfortunately, i am the installer and i have no idea how to tell from the spec sheet. I hope the link below works.
thanks in advance for any help

http://www.*********.com/catalog/pdf...c7904177a1.pdf