Review on 💎 Ultimate Precision: Hitachi 728024 32 Inch Diamond Core - Enhancing Drilling Efficiency by Christopher Isaac

Used for drilling porcelain stoneware for installing a shower door. Paused every 20 seconds and dunked in a barrel of cold water to avoid overheating. Used a small nail to pry out the stuck chips. I cut the first 6-8 holes like nothing happened. He started to slow down on the 10th hole. Your mileage may vary, but this exceeded my expectations. Just remember to start the drill at an angle and slowly tilt the drill straight back as it pierces the glaze of the tile. I will buy it again!