If you've ever bought router bits, you know how expensive they are. There are some that individually cost more than the whole set. If you're someone who uses a router for work or everyday use, then spending good money on the highest quality bits is important. If you only use them in DIY home projects like I am, this set is invaluable for the number of beats and beat variations you get. I tried a sample of a round small countertop and drilled a channel through the center to fill it with epoxy. It worked perfectly and the racquet still looks like new. Highly recommended for enthusiasts, but not for long-term users.