This type of terminal has become popularly used in recent cars
For coupler conversion etc., this terminal has become necessary.
With a hand-held crimping pliers, it does not work as hard as working.
For that, precision crimping pliers are necessary.
Although it becomes expense, I (engineer precision crimping pliers PA - 09)
I bought it, if it does not caulk cleanly it will not fit in the line dropout or the coupler
Something has become a review of precision crimping pliers.