By now, you might have the idea that you can upgrade your weapons using the parts collected throughout the game. However, to upgrade your weapons, you are going to need some tools too. I am not talking about the scrap metal parts you collect, but there are some tool boxes which you can harness to craft useful upgrades.
Tool Kit Location #1
In the Chapter 4 (Bill’s Town), you can find the tools in basement section of the church. It’s the time when Bill hand you over the shot gun.\
Tool Kit Location #2
The tool box can be found in a storage room in Pittsburgh. Which Storage room? The one you will reach just after the fight with the hunters.
Tool Kit Location #3
After when Ellie lights up the generator, you should look for an equipment room on the left side. You will also come across a couple of clickers. Clear the room and gather the loot.
Tool Kit Location #4
You can find it in the locked room on the second floor of the science building.
Tool Kit Location #5
While you are at the bus depot, you can find the final box in a FEDRA Triage tent.
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A long-time gamer, his favorite game series is the Gears of War but when he's not gaming he likes to kick back with a few popular animes like Naruto.