The Cyclone Diamax porcelain tile drill bit impressed me with its industrial grade quality... According to my experience, this cutting tool can easily and smoothly drill through even the toughest ceramic and porcelain tiles with minimal chipping or cracking. The precision and speed offered by this tool is unmatched when compared to its peers on the market. The only downside is its higher price point, but the investment is well worth it for the quality and ease of use it provides. Overall, a great addition to any industrial and scientific setting!