Skulgrimen runs Skulgrimen's Battle Gear shop in Rellekka. He is involved in The Fremennik Trials. He can make rock-shell armour from giant rock crab shells and dagannoth hides and also sells a range of helms and weapons.
He is also one of Doric's customers in Task 6 of Doric and Boric tasks that follow the What's Mine is Yours quest, requiring 20 mithril warhammers, which gives Smithing experience and charges for the gofannon amulet.
After completion of the hard fremennik tasks, Skulgrimen, will exchange suqah hide for suqah teeth at a 1:1 ratio.