HELP - Need to drill holes in granite worktop

[Deleted member 1779]

Have acquired a piece of polished granite. This is 30mm thick. I want to use it as a vanity top in my bathroom with a counter-top basin on top. The problem is I need to drill two holes in this - one for the tap the other for the waste. Whats the best approach here..

How to diamond drill a hole into a polished granite worktop (the video)

[starts at 1m 42s into the 8m video] and the procedure to drill the hole takes 1m 30s

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In addition to Granite Worktop, the video also covers porcelain tiles, glass, slate