I started restoring this ‘ciseaux bedane’ a while back and got sidetracked. Still some hand grinding to do on bottom, but it was almost there. These chisels are meant to be whacked hard, and I’ll need to put a handle on it with two ferrules, so I bumped it up as my test for using threaded brass plumbing fittings as ferrules. Strong.

Btw, this fitting as a butt ferrule may not, I realize, be ideal for wooden mallets striking the ferrule corner a lot. The brass edge might start wreaking havoc on the mallet.

That’s one reason for having the stepped seat, so wood comes through the end and helps buffer the blow. I use a nylon mallet currently and have no problems. Caps are replaceable in any case.

You could also round over the back of the fitting, and I will. Plenty of brass there with the flange for doing so.