Alright I’m not sure about how tags work but this is how I set it up for my own game, but I set almost everything up within the WeaponBP so yours will probably look a bit different, and you’ll need to imagine the ZombieBP is your crate.
Now between your cast to wrench_BP and your destroy event you’ll need to set a branch with a boolean from your Wrench_BP as a condition, my boolean is Weapon Can Collide, when the weapon is swinging it should be true so that it can move on to destroy the crate, when the weapon isn’t swinging it should be false and nothing will happen.
Hope that helps.