The 8.05mm would be about 0.317". I think the 8.22mm (0.324") may not crimp the cable tight enough. I searched our system for die sets and even the crimpers with the die set, and the 0.324" (8.22mm) was the closest match. If you can not find a better match to the 8.05mm (0.317") elsewhere, this would be the best option. I’m sorry that we do not have a better fit to your specification.