It should be noted that the amount

It should be noted that the amount of uses necessary on most smaller items will look equivalent to a 20% buff instead of 33% - this is because the game rounds down percentages instead of rounding up on calculations regarding durability. Conversely, the game will round up when calculating the amount of hits an object takes to destroy. Simple example: a tree takes 6 hits to fell with a standard axe, and the Pick/Axe gives a 33% buff; then: 6(normal hits) * 0.67(amount of hit reduction) = 4.02 buffed hits required. Because of the .02 overage, it will take one more full hit to fell the tree.