| ||For the super mutant character, see Hammer (super mutant).|
Ball-peen hammer (1)
- Seven in Vault 114
- Six in Boston Airport ruins.
- Six inside Poseidon Energy.
- Five in Saugus Ironworks.
- Four in The Big Dig.
- Four inside the Mass Fusion building.
- Four on board the Prydwen.
- Four in Vault 81:
- Three in the main vault.
- One in secret Vault 81.
- Four inside Weston water treatment plant.
- Three inside Kendall Hospital.
- Three inside Corvega assembly plant.
- Three in the Public Works maintenance tunnel.
- Vault 111.
- Nuka-World (add-on) Three inside Nuka-Galaxy
- This item can be found as random loot inside containers, like toolboxes.
The ball-peen hammer was originally going to be used as a melee weapon but it was cut from the game and turned into a junk item.[verification needed]