Iron warhammer

Iron Warhammer is a free-to-play item on the OSRS Grand Exchange in the bars category.

In-game examine text: "I don't think it's intended for joinery."

It has a Grand Exchange buy limit of 125 every four hours, a high alchemy value of 103 gp, and item ID 1335.

View on OSRS Wiki

Iron Warhammer shows an active flip setup with a margin of +10 gp and 16,003 trades over the last 24 hours.

At the buy limit of 125 every four hours, max profit per cycle is about 1.3k gp — high margin with healthy liquidity.