Review on 💎 High-Quality Set of 2 Diamond Coated Hole Saw Drill Bits (23mm) for Glass, Ceramic Tile, Marble, Rock, and Porcelain Surfaces by Alex Taylor

I used this drill bit to drill a hole for a water tap in 7 mm thick ceramic tiles. I cut the hole before installing the tiles. I used a drill press and a rubber tile mat and a small spray bottle of water to keep the drill bit cool and clean. I've only cut one hole so far, but it cuts through like a hole saw through softwood. I expect to get multiple holes from each drill. It was very easy. I used them whenever I needed to cut holes in tiles.