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.

Here I made a shortsighted mistake. Instead of logically turning the fitting upside down to first test fit and finesse the smaller flanged hole (for an easy win), I attacked it the other way by filing the main seat first, to get that screwed on up to the flange.

That was bad. I ended up inadvertently trying to force the flanged step through before it was ready, and that ended up stripping off some top threads on main seat.

After a lot of back and forth creep-up filing, it screws on with help.