These bits seem to be pretty good quality for the price, it's hard to tell how they differ from the Freud dovetail bit I have. I have other cheaper bits where the carbide is longer or sticks out further on one side and they are just poor quality. The only issue I had was that the bits appear to be taped into holes in the wooden box they come in. very difficult to remove and be careful when removing as they are sharp. I ended up using thick gloves to remove most of it, but I had to use the smallest part with pliers.