I have a question about chain "closing" (not sure of the english word, but you get it, right?).
I know how to open a chain with a chain tool, and I know I must not "go too far" as to remove the rivet from the outside hole. And I consider I have gone far enough when the chain can be opened. So it's pretty straightforward.
But when closing a chain, how do I know I went "far enough"?