What I like about this bit is that it smooths very well. I made a router sled to level a 2 x 3 foot cutting board I made and removed each about 1/4 x 1/2 inch. Big! I DID NOT LIKE IT: The shaft length was frustratingly short for my purpose. The worst were the tiny lines that the outer cutting blades would leave. Not big and not deep, but very difficult to sand the end grain.