Description : I'm still cracked. Do you think it would help to cover it with duct tape and then drill it? I already have the last tile. Hubert
Last Answer : Don't you have it stuck yet? Drill from the back, not with a sight glass, slowly - preferably odunderwater´ (soaked). And - of course, on a soft surface. If you already have it glued, then I recommend a diamond cutter, ideally with high speed (slag), it goes without a problem. :O