I have searched through previous postings and would agree that a powered tile cutter with water bath is *probably* the way to go, BUT, before I spend the cash can anyone suggest where I am going wrong. I have a limited supply of expensive 300x300 floor tiles and apart from about 20 half cuts I have a similar number where I need to take off straight 20 - 30mm cuts. I have tried this with an angle grinder and I find that the corners are breaking off and even one or two have produced a smooth curved break about a third of the way in to the cutting line. I have obtained similar results(?) with standard stone discs and a diamond blade. I am just curious to know if there is a particular technique as I even made a few practice cuts on some old floor tiles and everything was fine. I have been cutting the narrow strips first as I can at least re-use the damaged tiles but I cannot afford the loss of the half cut tiles as supply is a nightmare.
Thanks
Ken