Re: What wood?
Adam Cherubini, NJ
>With William's permission, I just wanted to add a few remarks of my own to his excellent notes:
I would stay away from ring porous woods like oak, ash and hickory, because they have a tendency to fail along the growth rings, especially in radical shapes like saw handles.
The grain should be oriented so it runs straight through that little section between the grip and the body where the screws are. On a DT that means usually 45 degrees down.
Also, Disston almost always used quartersawn handles. I'm not sure why. It may have been that he didn't have to kiln dry them, since shrinkage wouldn't effect the shape or fit. Or it may be that a cupped handle would either cup the saw blade or crack the handle.
You might also do well to choose a wood that has more impact resistance than walnut.
We notice that traditional saw handle materials all have high cross grain strength in common. This was undoutedly helpful for the unique shape of the saw handle. It is also helpful (and related) that the material have a fine grain structure that allows fine detail to be carved (like apple or beech).
I feel its safe to assume that the choice of wood species in period tools had more to do with mechanical properties and less to do with color. This is certainly true of planes, chisel and saw handles, measuring tools, etc.
Adam