My in-laws have put in an order for me to make an outdoor log bench for their cabin in Wisconsin. The design we decided on is below. I don't know anything about green woodworking or even about drilling a hole for a two inch tennon four inches deep.
I've got a contact with a tree service to get the log and I'll have them rough out the log. I figure I can shape the legs with a drawknife. How should I drill the holes in the log for the legs. I've got a brace I could use. I'm not sure my 3/8 drill could turn a 2" bit and getting the log to the drill press would be a challenge.
Could I use a Forstner bit? They seem to be less expensive than the other options.