I put the router bit in the drill press for a project I was doing at only 3000 rpm and it cut a perfectly clean groove, I wouldn't have mine Couldn't ask for better and I was lucky for the price. I have a custom wooden box that has been running for over 45 years and I know the difference between junk and good stuff, if it lasts a while it's a plus, if not I already have my money for a good job get what he did. R.J