This product seems to get high reviews and almost everyone is warning about it. I'm going to reinforce this since I had to cut mine from the case. Be very careful as they are sharp. My big complaint is that the 1/2" bit broke after about 10 minutes of very moderate use. I cut red oak which is very dense and made 1/8 inch cuts and after about 10 minutes the bit broke halfway. the edges. I have contacted Freud but they have not yet answered my emails. I had to purchase SpeTool Upcut spiral cutters here at Revain to finish the job. They did a great job in the same wood at a much lower price.