Choose your method for forming mortises
Now, you're ready to form both parts of a haunched tenon joint following the steps shown at right.
Choose your method for forming mortises -- a drill press equipped with a standard twist bit or a hollow chisel attachment, a plunge router and centering jig, or a mortising machine (our choice). When using this tool, bore at each end of the mortise layout with a 1/4" hollow chisel bit, then bore a series of holes in between, leaving a wall between adjacent holes. Finally, bore out the walls.
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