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One Day
The best 115mm blade I've ever used is the marcrist ck850 accumax. Not the cheapest, but definitely the fastest and cleanest.
I came across a decent one in my local suppliers, called Trojan, cleanest cut I have ever achieved with a grinder and lasts forever. Only 19 quid too and is way better than the Marcrist that I burnt out after 3 weeks
Every kind of Porcelain. Must say though I have tryed to google them and it seems to come uo with a different blade to the one I got. the one I got was red in a black cardboard package and i can only find a green one online which is a lot more expensive. (I can't vouch for the green one)
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