Review on Tysun 💎 Diamond Ceramic Granite Porcelain by Sean Tops

I ordered these because I couldn't find a good set and was in dire need of a replacement. I needed two sizes to drill through a granite countertop and the larger bit was enough for a drill. Metal is very soft and drilling into granite or anything that requires pressure will damage the metal drill stand. Patience, plenty of time is a bonus if you intend to use it more than once.