I used one of those cylindrical diamond coated drills the first time I had to drill through tile when I fitted the shower door, they do work well, and I guess if you want to ensure pinpoint accuracy the stick on thing is a nice-to-have, but I found marking the tile with a CD pen and then using a masonry bit worked just as well- significantly cheaper, also.
I used one of those cylindrical diamond coated drills the first time I had to drill through tile when I fitted the shower door, they do work well, and I guess if you want to ensure pinpoint accuracy the stick on thing is a nice-to-have, but I found marking the tile with a CD pen and then using a masonry bit worked just as well- significantly cheaper, also.