Not for a router table, for a tongue and groove router bit set ...

KOWOOD Tongue and Groove Set of 2 Pieces 1/4 Inch Shank Router Bit 3 Teeth Adjustable T Shape Wood Milling Cutter

If you look at the first picture in he gallery, you can tell that the bit in this picture is copy/pasted into the picture displayed here. Very poorly done hack-job photo editing.