Review on 💎 Revolutionary Jashtool Diamond Ceramic Cooling Porcelain: The Ultimate Heat Dissipation Solution by Leo Fairchild

These bits worked great. I've tried several different bits in the past, trying to drill through 1/4" thick porcelain. Most just overheated and burned out without moving forward. Ordinary drill bits made some progress, but they also burned out, and for one well needed several. This set easily made 8 holes with a drill bit and there are at least a few more holes left. A larger size set is welcome, but until then 1/4" will suffice for most needs. IP: towel rails, toilet paper holders, shower stalls.