These router bits are an essential tool for anyone in the woodworking industry. They provide amazing precision and power with every cut, making them the go-to choice for professionals. Through trial and error, I found that these bits work well for various types of woods. They are durable and long-lasting, ensuring that you'll get your money's worth. The only downside is that they may not be suitable for beginners, as they require some expertise to use effectively. Overall, a great investment for anyone in need of high-quality industrial and scientific cutting tools.