Like all my other Amana tools (mainly router bits and die heads) this tool is of high professional quality. I was looking for something that could simultaneously make through holes and indentations in ip (extremely hard wood) while maintaining a constant depth. This beautiful tool does a great job, the through hole drill bit is solid carbide. You have to choose the right speed for your drill (I don't drill hands-free), but other than that it's easy to use. In addition, they are durable and…