Some days ago, I had to apply a pipe to the handle of the box spanner I’m using on the mill, to remove an overtightened drill chuck:
ended with the business end of the spanner breaking into pieces, luckily the chuck was released at the same moment.
This is definitely not a fix, but I needed something made quickly (and it is still working after a few days. Might end up with
press fitting a collar to this one, someday)
But I want a more durable one (though the above one reminds me not to overtighten the chuck ANYTIME I’m using it).
Started with this
And drilled thru a portion of it to the distance between the flats of the square on the drawbar (8mm),

then some length of it to the distance between the opposite corners (10mm)
A quick visit to the marking bench
Then to the mill, to drill the four 1.5mm dia holes (some 12mm deep)
Took a picture of the other end, too, toghether with the next tool I’ll use, tomorrow.
(I wish I kew where the square file is gone: will do with the triangular one with a little more care).

Passing close to the vise, on my way to bed… ..it’s almost done now, but no pictures yet.
Marcello