KrauserKnifeEx.UpgradeIsUnbreakable  

Well, in later newgame+
while i really love fighting knife but the unbreakable properties of primal knife has me leaned towards the later
Which brings me here

The Ex upgrade of fighting knife now makes the knife unbreakable
While it loses it former ex upgrade of x2 power, i have made the final upgrade damage to 3.6 (x2 of 1.8)
(as i cannot find a way to make both upgrade fit in one slot of ex upgrade.)

Ps1 i can't mod the text UI of it yet therefore the Ex upgrade text will state that it x2 the power but you can check the inventory that it becomes infinite.
Ps2. For existing saves the upgrade slot will be missing, to fix this just sell the knife and buy it back.
Ps3. Will conflict with my bonus-weapon-restored and it's associate mod but if you want i could merge it and update later. Will work with my unbreakable armor mod.