The edge stability of Rex45 is better than Hap40. Rex45 doesn't easily roll or chip, whereas Hap40 is more prone to rolling. BBB did some testing and found that Rex45 was more stable at the edge than CPM M4. Rex45 also has better edge retention, as others have mentioned, but in my experience, it sharpens the same as Hap40, with the same level of sharpness. For these reasons, I prefer Rex45.
Hap40 does offer some corrosion protection, as a result of the lamination, which has it's appeal as well. The other nice thing(GarageBoy beat me to it) is the amount of knives in Hap40 that are regularly available at Knife Center, with their Pakkawood exclusives. Unfortunately, Rex45 isn't as readily available at this time.
Last edited by Albatross
on Sun Jan 26, 2020 10:04 am, edited 1 time in total.
sal wrote: ↑
Fri Nov 09, 2018 3:01 pm
...But in general, I'm all about high performance, Ergos, safety. That's why I've been accused of "deigning in the dark"...