“The fact that the springs, blades, etc. can be replaced is precisely what makes it bifl.
What happens if your fixed blade snaps while batoning wood? It’s done for.
The opening…”
“They’re more than capable of being used to baton wood.
https://youtu.be/32JOrqtpyls?feature=shared
And if you did manage to snap one you have the option of getting a replacement…”