Box Joints: bit size vs wood size
I've been making box joints with 3/8" wood. When I use 3/8" Whiteside bits the boxes assemble easily and snuggly. When I use a 1/4" bit, the assembly needs a little kung fu. I'd like to try a 1/8" bit but I'm thinking I'll need a pile driver to assemble it.
Why so tight? I'm aware of the "rule" but I still don't understand the mechanics of this "rule." Shouldn't I be able to assemble a box joint of any size with any wood?
BTW, I'm using the Incra Ultra and it works like a dream.