It is endlessly annoying that on the KIN/ Bohemia 5626 they put a crappy plastic button on a well made all metal pencil, while most of their 2mm had a very elaborately machined metal one.
Wonder if it can be replaced with something else from that era.
I just tried everything I could think to try and the only one that worked was a Staedtler Micro cap but it is just barely not wide enough and falls out…
Even if that did work, i wouldn’t steal from that specific Staedtler like that.