Need to drill holes in granite

[waybomb]

Anybody here ever drill holes in counter-top granite? I need to drill two 3/16" holes in my new granite counter top. I am worried about chipping as the bit starts it's hole. I could have my granite guy do it, or I could ask him, but don't want to bother him. I don't think he made any money on this job and he won;t take anymore since he "quoted me". Stand up guy, but I owe him.

So any guidance on drilling into granite would be appreciated.

I did search, and I found anything from using a hammer drill(!), to using a cermaic bit, a cement bit, a carbide tipped bit, and a carbide bit. Very definitive search.

I am looking for first hand experiences only!

[aviator]

You could ask at Home Depot... IK you need a special bit and you also want to use water/cutting oil [can't remember which] to cool the bit/surface as you drill.

[AaHubb]

If you liked his work I would hire your 'granite guy' to do the job at his normal charge out rate. You will get a better job done by some one that has a stake in doing the job right, plus you will have some protection if the job doesn't go as planned.