Really bad job. Used to craft Bead Bars as well as some Bead Sockets and matching Poplar Sockets. Lots of burning, tearing and chattering, and not due to a lack of power in my setup - this was on a table mounted Triton 3 1/4 HP router with a full holdout setup. It replaced a cheap old Craftsman bead bit set that I always had and that never let me down. Not happy - threw me back.