Harvesting(Destructible Mesh)

How do I make it so that when I punch a tree for long enough time it breaks apart. I made it so when you collide with it it breaks, but I wan’t to make it so that when I hold down the punching input long enough it breaks apart.

What I have right now:

You need to apply damage to the tree, and set the threshold for # damage before it breaks. Probably not the best way if you want to chip of parts of the tree while gathering resources.