1.15.2 Tools Break the Right and Wrong Blocks

I am currently adding a bunch of tools, using the appropriate classes, i.e. AxeItem, PickaxeItem, etc. The issue I am having is that my axes can break stone. I set up the tool material enum just like how the vanilla game does it, referencing the vanilla ItemTier class. I added the items just like how the game does it, referencing the vanilla Items class. My question is why are my custom axes able to break and drop stone?