Amana Tool RC-2000 Insert Solid Carbide Economy Insert Flush Trim 1/2 Dia x 5/16 x 1/4 Inch Shank Accessories and rabbet cutter as shown

and rabbet cutter as shown in the solid drawing to cut the tongue

A corded and cordless version of each

The torus-and-cove profile produced by this bit make an excellent edge detail or molding

the template must be on bottom of the workpiece

Thus you can cut slots that range in widths from 1/8" up to 23/32" in 1/32" increments

Amana Tool RC-2000 Insert Solid Carbide Economy Insert Flush Trim 1/2 Dia x 5/16 x 1/4 Inch Shank Accessories and rabbet cutter as shownGet the practicality and productivity of an insert bit for the cost of a standard brazed tip bit. The small two sided carbide insert knives usually can be changed without altering the bit setup in the router. Because the knives aren't heated for brazing, it can be made of a harder grade of carbide and it will hold its edge longer. Ideal for both standard routers and laminate trimmers.