First Four Finished (Plow Plane Mortise Chisels, That Is)
With the big push to get the Gragg chairs assembled I was inspired to finish the first of the plow plane iron mortise chisels. I got the four smallest ones to the finish line, or at least finished enough to actually use them on the delicate mortises of the chair.
The back splat elements are mortised into the crest rail with 3/16″ tenons.
The front bowed rung is inserted into the front legs with a pair of 1/8″ mortises. These need to be accomplished fairly late in the assembly timetable so there is limited space to work. These new petite chisels (roughly 6-7″) work like a charm.
One of the important things I learned was that the striking end of the chisel is comprised of two laminae of the wood cheeks and the fairly soft steel(?)from the plow plane iron that runs the full length of the tool. I resolved this for the moment by using a brass mallet for pounding on them rather than a steel one. I will add rivets near both the top and bottom of the handle to make them more robust, and may even add a metal striking cap at the top of the handle.
But they do indeed work exactly as I had hope they would
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