Review on 💎 DiamondCool Ceramic Porcelain Granite by Nate Jenkins

I got them to pierce the ceramic tiles in the bathroom which was a big problem for me. They work just as well as any drill bit I've tried, but it took me a while to learn to start the process at a 45 degree angle and then move to a perpendicular normal angle. Once I got the hang of it, they worked great. I'm glad I have four of these as I destroyed one of them in the tutorial. Cooling the wax insert works well and is easier to use than spraying water on the drill, although I suspect this would work even better.