I have 2 pairs of copper stub outs (1/2") and one 1/2" PEX pipe that I need to drill holes in porcelain tiles
I can't figure out what diamond drill bit size to order.
This chart tells me I need an 1" diamond drill bit but it seems too much
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1/2" pex o.d is 0.625", a 3/4" would be fine. Don't know grade of copper but the wall should be thinner than pex, the 3/4" drill bit should be fine.
It seems (I did some measurements, not sure why I did not do that before asking here :-( ) that even 1" is too tight and the holes must be very precisely positioned on the tile in order to be able to work with 3/4" 1" or even 1 3/8" seems to be more appropriate. I ordered this kit https://www.amazon.ca/dp/B07C8HQYZD