
I made these two rabbet planes by replicating a larger 17th-century example. Their main characteristic is that each has only one open side. For the blades, I used files, properly shaped and sharpened. The bodies are made of mahogany, with wenge soles. The metal bar on the side prevents the body from flexing when the wedge is tightened and adds weight to the plane. You could avoid using the bar by either increasing the thickness of the plane body or reducing the blade width, but both would be uncomfortable compromises."
"The hole for chip ejection can easily be made with a Forstner bit. The body design is very close to the original, and I must say, the finger support is perfect."
"Since each plane only works in one direction, you need to make two twin planes—one for each direction. One use I’ve found particularly convenient is finishing rabbets. In one instance, after cutting a rabbet with a circular saw, the blade setting was off and left a visible step. That was an easy job for one of the little twins!