In the diagrams I have seen, I frankly viewed them as Batman ears too, but
since others had coined a term, I thought it best to stick with the common
nomenclature.

I have not seen a closeup _photo_, let alone a live example, of these dado
cuts, so I am unclear as to how pronounced these batwings really are.

Since most everyone cries the praises on any of the dado sets I mentioned, I
doubted the issue was significant, but still worth some investigation before
dropping the cash these products command.

Your reply is what I was hoping for (and expecting).

But Phillip's reply still leaves me with pause. If not significant or
noticeable, why would anyone want to -- and in the case of Forrest, agree
to -- alter the blade's design to remove the cause of these batwings?

/rick.


"Joe Wilding" replied...
I have found that those batwings (I would personally call them batman ears,
but anyway) tend to disappear once you have you joint glued up.

Joe in Denver
my woodworking website:
http://www.the-wildings.com/shop/


"RickS" wrote...
At least some of the manufacturers produce the outside blades such that
they score the workpiece to achieve perfect edges and avoid tear-out.
While this is nice, the scoring is bound to also leave a small valley at
the bottom corners of the dado (some have called these batwings).