Dual purpose cutters which can be used for producing either a neat 90° corner joint or a joint for edge jointing boards together. 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. Available with 1/4"(6.3mm) or 1/2"(12.7mm) shank. Range of timber thickness: 666229 - 9mm to 13mm, 666230 - 10mm to 18mm, 666231 - 13mm to 25mm.