The TCT tipped hole saw is just as advertised. Based on my observations, it has provided me with clean cuts through metal, ceramic and even wood. The tungsten carbide tip has proved extremely durable readjusting to various speeds and excess water without damage. The only con I've noticed is the initial cost being slightly higher than other hole saws; however, the savings in time, effort, and long-life performance make it a valuable investment . Pros: Durable, versatile, clean cuts. Cons: InitialSee full review