The marmaros pickaxe is a tier 3 pickaxe, found in Daemonheim. It requires level 20 Attack to wield, and level 20 Mining to mine the various ores in Daemonheim.
It can be made from one marmaros bar, requiring level 22 Smithing and giving 29 experience. It is a possible drop from the Bulwark beast and an animated pickaxe.
On a tool belt, the marmaros pickaxe can be used to automatically mine rocks containing ores, rocks blocking one's path and rocks in the Stomp boss's room. Additionally, it is used automatically as a side-attack to chip away at the Bulwark beast's armour if using a melee weapon.