365Drills wrote:

Currently there is genunine difficulty drilling holes into very hard
large porcelain tiles, granite, marble etc. Especially when the items
have already been fitted.

Looks like an interesting solution. I found the conventional water
cooled carbide bits (ARMEG etc) work, but are quite expensive at £1-£2
per hole given the relatively short life of the bit. How many holes
would you expect to get out of one of your drills if you keep it cool
and look after it?


--
Cheers,

John.

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