'You have done well, (Player), and have exceeded my own not inconsiderable skill! And still, as skilful as you are, there are techniques beyond your reach, practices in the craft you have not yet made your own.
'Tralli Hammerfist, master weaponsmith of Ered Luin, may be able to fill in the few gaps that remain in your weaponcrafting education. I have not known him to take many students, though.
'Look for him at the Northern Barricade of Rath Teraig in the Blue Mountains. The struggle against the goblins of that place occupy his mind, and it could be that instructing a pupil will divert his thoughts momentarily from the goblin problem.'
Your skill with forge and anvil is well-honed, and the weapons you fashion upon them are exemplary for their kind.
Talk to Tralli Hammerfist
Tralli Hammerfist is at the Northern Barricade of Rath Teraig in Ered Luin.
You have been told to speak with Tralli Hammerfist, a master weaponsmith, for he may be able to further your instruction.
Collect Dwarf-Steel Ingot (6)
Collect Strong Steel Hilt (1)
Collect Deep-Iron Nugget (1)
Tralli Hammerfist gave you the recipe for crafting a Fist of the Dwarves and his notes on where to obtain the components for it.
Tralli asked you to craft a Fist of the Dwarves so he could judge your weaponsmithy skills.
Craft a Fist of the Dwarves and show it to Tralli Hammerfist
Tralli Hammerfist is at the Northern Barricade of Rath Teraig.
Tralli is waiting for you to craft a Fist of the Dwarves for him to judge.
The Deep-iron Nuggets are at [22.7S 1.9E]
While you are there, and if you can, Dwarf-iron is plentiful to the west of the Deep-iron Nuggets, throughout Northern and Western Bruinen Source, and High Crag.
Crafting the Fist of the Dwarves requires a Superior Forge, so will have to be done in Thorin's Hall, Twenty-first Hall Ost Galadh or Lhanuch.