Nice video. You're using the chuck instead of a sacrificial block of wood. I was holding my breath as you inserted the Forstner bit into the wood. Saw you quit when the proper depth was reached. Thanks for the video. Obviously, one must be very careful when trimming the material and not hit the metal ring.
Nice olive wood ring. Been making rings for a while now. If you decide to make more, then the only immediate advice I have would be using a carbide tool that’s not curved. I use the square bits on mine, so I don’t have to worry about a CA glue gap between the wood n steel. Still a damn good job since it’s your third ring.