To make simple, fast work of mortise-and-tenon joinery, this system uses power tenon cutters and matching countersinks to produce strong flush-fitting joints in round or dimensioned stock.

The cutters produce a symmetrical tenon with a 60° tapered shoulder that fits neatly in a countersunk socket. The 05J42 series mini tenon cutter feature a single blade, while the larger 05J46 series feature a main blade that shapes the tenon and shoulder, while a finishing blade smoothes the tenon to a consistent diameter and cuts a slight relief at the base of the shoulder to ensure it seats flush.

The finishing blade's cutting depth is adjustable, so you can fine-tune the tenon diameter for close fit. Tenon lengths depend on tenon diameter, 1/4"-3/8" tenons have max. 1" long tenon, 7/16"-9/16" max.1-3/8" long, 5/8" to 1" max. 2" long. and are for use in drills with a 3/8" or larger chuck. Sizes 1-1/4" to 2" cut max. 3" tenons and are for use in drills with a 1/2" or larger chuck.

All have anodised bodies, and can be used in an electric drill or hand brace (not for use in a drill press). To shape the tenon socket to match the larger tenon shoulders, we offer two sizes of countersinks, each with interchangeable bushings sized to match the larger tenon cutters. The small countersink comes with 5/8", 3/4", 7/8", and 1" bushings; the large comes with 1-1/4", 1-1/2", 1-3/4", and 2" bushings.