location:
Bunker Alfa underground boxes:
Bunker Alfa Level 1 Wrench
Possible wrench location (Level 1)
- Level 1 - Shelf in the room with a Biter
Bunker Alfa Level 2 Wrench
Possible wrench location (Level 2)
- Level 2 - Locker in the room across the terminal, where Generator used to be, with Frenzied Giant in it.
Bunker Alfa Level 3 Wrench
Possible Wrench location (Level 3)
- Level 3 - Bottom box in a room with the most zombies, Spitters and Abominations, ones that trigger on lasers.
Green, Yellow, and Red Zone crates.
Airdrops
- Pine Bushes,Pine Grove - Seems to be a good place to get them from.
AI player bases (if not previously looted).
you can get wrenches in yellow and red for high chance to get one