Mithril pickaxe

Mithril Pickaxe is a free-to-play item on the OSRS Grand Exchange in the weapons category.

In-game examine text: "Used for mining."

It has a Grand Exchange buy limit of 40 every four hours, a high alchemy value of 780 gp, and item ID 1273.

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Mithril Pickaxe currently has a flip margin of −9 gp, which isn't profitable to flip right now despite 15,305 trades over the last 24 hours.

Items with negative or zero margins like this are better watched than actively flipped until the spread widens.