Drilling/cutting marble

[Scoby_Beasley]

Has anyone experience of drilling and cutting marble worktops?
Her indoors' ex-partner was a martyr to d.i.y. (well I think he should be nailed up looking round here !!!).
We have a marble worktop that is 3/4" away from wall due to 3 water pipes (don't ask, I know you only needed one) and I want to drill and slot round them to push the top back to the wall.
My options are masonry, of course, and I have some t.c. tipped milling cutters, I'm assuming plenty of water will be required.

 

[DAZB]

This is from an American site but it does show the type of bits you need.
http://www.tilebit.com/millennium.html
From what I know you will need to take it fairly slowly with the drill and lubricate and cool the bit with a steady stream of water but the chart will tell you the correct RPM for the size of drill bit you use.