"bent" wrote in message

Whoops, Freud have a 15/32" "undersized plywood" bit on the next page. Is
this what I need. Is all undersized plywood the same under-size, and
should
one setup produce a TIGHT joint?

Freud and most every good router bit has them. www.infinitytools.com
www.routerbits.com are good sources.


END QUESTION

For the ¼" bottom grooves, I am assuming that it is fine to use a 1/4"
straight bit for the ¼" nominal bottom plywood, because it will be
floating
(and expanding/contracting) in this groove anyway, and only supporting.

Yes,


For the front lock joint I will be using my table saw, and will have to
deal
with a 1/8" thick combination blade to make the ¼" wide cuts. To be dealt
with later.... I do not want to buy a stacking, or wobble blade, really;
may
not keep the TS.

You may want to consider this:
http://www.infinitytools.com/products.asp?dept=1059