the Shimano one is quite good, surprisingly, but that won't save me bending the stud on it sometime when I in a hurry, thus consigning that tool to the growing pile in the corner 'just in case'.
Just in case what? Is it going to sprout wings. Grow a new appendage? Why oh why do I keep things which are broke? I guarantee you I've got six or seven chain tools, one at least with an old galvanised nail in place of the rivet driver. Once I actually thought 'if I get a lathe I could turn my own replacement studs out of super-hard steel'. Brilliant. Feckin' A1. Invest in a lathe the make chain tool studs. A mind-bogglingly great idea; lucky the shed doesn't actually have power running to it. I feel better now, thanks for letting me emote.