How do I Drill holes in 2 thick granite

How do I Drill holes in 2 thick granite Images

How do I Drill holes in 2 thick granite

How do I Drill holes in 2 thick granite Description

How do I Drill holes in 2 thick Granite (http://tanbrown.org)



I have a 2" thick Granite (http://tanbrown.org) 16" x 16" caps installed on top of each of two hollow cobbIeStone (http://g603.net) posts. I would like to install an electric lantern on each post.
Is it possible to drill holes in these caps large enough to accept the wiring for the lamps (without cracking the Granite (http://tanbrown.org) )?