I've had great luck with the devil's tool lies. This was a no-brainer for me as I already had a Diablo mandrel and needed a 4/18 hole saw to cut holes to mount some recessed lights on a floating shelf. I used it in a drill press and it was easy to get clean crawl holes that were perfect for mounting my lights. It produces enough sawdust, but no more than any other hole saw. I adjusted the speed of the press to around 700 RPM and it turned out to be a good speed for him. Those devilish bits and saws are always good, sharp and cut well. I love the system mandrel on this one. And the way it was tested allows me to look over the bead and position the pilot drill right on my mark when I start cutting. The result is a cute little project.