The author remixed this model.
I made this fit my off brand crimper set that I found on Amazon. The crimping head is almost exactly the same, but the handle overmold is slightly bigger than the original. My alterations account for that. I made the pocket shallower so it's easier to retrieve. The crimp head is also supported to prevent it from rocking.
Amazon Link: https://shorturl.at/I5Mj5