I'm making something with frame and panel construction and the panels will be 1/4" maple plywood. I am now on a hunt for a slot cutter to make grooves for the plywood panels. I've tried a 7/32 cutter which is slightly too big and a 3/16 cutter which is slightly too small. I may use the 7/32 cutter and pin the panels so that they don't rattle but I wondered if anyone had a line on a cutter that would be the correct size with no additional "jigging" to make it work.
Rockler makes a router bit for plywood sizing but I find it easier to use a slot cutter.