Using a (minecraft) plugin, how can I modify the maximum durability of an Item? (Commands work as well)

I’ve been trying to make a plugin with custom recipes (I have that part, thank you very much) to create some pickaxes with insane durability, but I don’t want it to be unbreakable, since that breaks the whole point of Survival. It just bases the texture on a Netherite Pickaxe.