Review on Tysun 💎 Diamond Ceramic Granite Porcelain by Aaron Urena

Seems like good value for money, especially if you need the tools for multiple jobs and not for professional use (although I can't tell how they perform in professional use as I haven't used them have used them heavily). I had to make a big hole in a big clay pot. The hole was over an inch in diameter and the clay was about three quarters of an inch thick. My HSS drill bits and concrete drill bits didn't even make a dent, that's why I bought this set. He worked.