china lavoratory

You know, in all my years. I've never wanted to know that.

Christopher A. Young Learn more about Jesus

a diamond drill with plenty of water, the same way they drill holes in granite kitchen countertops.

why?

It is always risky to drill any version of vitreous. Diamond hole saw with water and a carborundum grit hole saw with a carbide lead bit are about the only things I would attempt it with. Once you're through the glaze, it's a piece of cake.

I assume you are talking about adding a faucet or soap dispenser or similar.

Seen it done. The guy mounted it in a wood support so he could use his drill press. He used a special bit, bottom of it was flat except for grooves going from the center out to the edge. It doesnt drill through it it grinds through using abrasive powder and water. Drill turned real slow, maybe 30 rpm or so, you could easily count the turns. Looked like all was OK but he told me later on it cracked after he installed it. I think it took a month or two for it to break.

Jimmie

Take it out to the curb on trash day or put it on Craigslist. Next, find one with the features you want and install it. It is possible to cut a hole in such materials with a high pressure water jet machine. The $100/hr. (or more) machine time fee might bend your budget, though.

Joe

Have Igor do it - that's what lavoratory assts. are for.

You dont. You take it to someone with the proper equipment and pay them lots of money to do it for you. This is not a DIY project.