Originally Posted by
CyclingFool95
This link might work, but it may be a little wide - 5.25mm rather than the proper 5.15mm. I have both campy 12 and the new sram axs 12 speed chain. The sram axs link is a bit too tight. It's better for the fit to be slightly loose. The sram eagle 12 might be a better fit. If the kmc chain is 5.25mm wide, it's really not a replacement for a Campy 12 or axs 12 chain.
Just about any chain tool can remove the campy joining pin, but use a decent fitting quick link when shortening the chain.
A new chain has a new joining pin, but you must have the campy tool to install it.