The archive contains 4 gifs showing various tool bugs:
1. Bug with a shovel. When throwing off the shovel, during the completion of the excavation of the blockage, the HP scale is not spent.
2. Bug with a crowbar. When throwing off scrap, during the end of the hack, the HP scale is not spent.
3. Bug with an ax. When throwing off an ax, HP is not spent during the destruction of furniture.
4. Bug with a master key. When throwing off the lockpick, during the end of the hack, the lockpick does not break.
* With a hacksaw, such shenanigans will not work, so do not even bother.