Dual purpose cutters which can be used for producing either a neat 90° corner joint or a joint for edge jointing boards together. The interlocking profile ensures trouble free gluing up and improves the strength of the joint. Additionally, it adds a decorative look, ideal when making boxes and drawers. It can also cut extremely strong joints to create panels or table tops.

The corner joint is produced by machining one piece with the inside face flat on the surface of the table and the other piece with the inside vertically against the fence. These cutters should only be used in a router table.