According to my experience, this hole saw is a reliable cutting tool for heavy-duty jobs. Its diamond construction allows for precise cuts on porcelain concrete, and other tough materials. The saw's durability ensures that it can HANDLE extended use without wearing down quickly .Additionally, its compatibility with various Industrial and Scientific drill types makes it versatile. The only drawback I found was that it tends to produce a lot of dust during use, which can be messy. Nonetheless, its a valuable addition to my toolbox..