Trouble with Neu again

[sleebus.jones]

Originally Posted by emaxxnitro

yeah it would be better if neu used hardend shafts. my neu shaft can be ground down with a hand file and also the set screw leaves a mark on the shaft

If it had a hardened shaft, the grub screw would never be able to get a bite on the shaft. Furthermore, if it was hardened, it would be more brittle, making failure more likely. If anything, the shaft needs to be more ductile.