After I bought a set of Ryobi milling cutters, I decided that no matter what I bought, I always had to grind the finished surface. After doing a little research and reading a few reviews I found that wasn't the case and most pros agreed that the Whiteside Beats were the best and most affordable. Having bought and tested this kit, I totally agree. Ryobi bits are a piece of junk. The Whiteside beats are amazing! They do NOT require grinding after milling. The milled surface is so smooth that you can almost see the shine in some woods. I definitely believe you get what you pay for, in this case you get more than what you pay for.