Thanks to everyone who gave me advice in tiling my kitchen! pdc, jcrtiling, 3_fall, Bond, Tony73, jobdone, callatiler, GaryTheTiler, Localtiler, Albert, impish, Sean Kelly...and anyone else I left out At this point I stopped and had to get a real dust extractor (don't use a vacuum lesson learned) Making my cuts. Not the best finish but i'm happy with it. I'll be replacing a few chipped tiles down the line but for now it will do. Also Had a few problems with levelling/spacer tile clips not breaking off so hand to use the grinder between the gaps then a solder iron to melt them out. Glad I was recommended a grinder rather than a wet saw.