I'm building my first tabletop with breadboard ends and have a bit of a quandry. The tabletop is 40" wide by 60" long, and I'd like to put 3" breadboard ends on it.
From reviewing the rec.woodworking archives, most people say that the tongue should be be between 1-2 inches long. This makes intuitive sense, and would be aesthetically sound.
My dilemma is this: I can't find tongue-and-groove router bits that will cut a tenon an inch deep. Best I could find was just over 1/2". Some folks have suggested using a dado blade on the table saw to cut the tenon, but that's unworkable for me (would be very hard to get a precise cut--the top is just too unwieldy). The only remaining suggestion I've seen is a straight bit with an edge guide. That would require making two cuts, one on the top, and one on the bottom. Ideally, those cuts would be perfectly aligned with each other. Any error (out of parallel or one being deeper than the other) would be very apparent. It seems remarkably difficult to get this right. Does anyone have suggestions on how I can get this right?