Iron pickaxe

Iron 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 84 gp, and item ID 1267.

View on OSRS Wiki

Iron Pickaxe shows an active flip setup with a margin of +182 gp and 1,036 trades over the last 24 hours.

At the buy limit of 40 every four hours, max profit per cycle is about 7.3k gp — high margin with healthy liquidity.