will the male part press through the female part when it is off the rest of the chain - I have had a few where the holes in the plate are too small for the pins - just needed a small deburr,
Then there are those pesky O-rings to close up whilst you rivet it over - I have used small mole grips to 'crush' the parts together whilst I pop the rivet with a hammer. Needs four hands, eighteen elbows and a slot of luck
R