I have been contemplating the "best way" to cut a double-tenon on the end
of a 4by4, the tenon should be 3.5" long 3" wide .
A "dado blade" would appear to work well, perhaps even best, for everything
except the space between the tenons--and it is this space which I am
concerned about and which motivated me to make this post. Options appear to
1. Drilling and routing it out (from both sides, before cutting any other
part of the tenon).
2. Cut as much of it as possible with a TS and chisel the rest of it away.
3, Relying on BS and (which doesn't seem as precise as #1, or even #2)
5. Compromise and shorten the tenon in order to cut it on a 10" TS (which
can make a 3" cut at 90 degrees)?
This is one of those details that, to the untrained eye, is easy to take for
granted at first, and then it sort of sneaks up on you! My eye is still
This problem made me wonder whether the original designer (Garrett Hack)
might have used a TS bigger than 10" to make easier work of this?