Rune warhammer

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

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

It has a Grand Exchange buy limit of 70 every four hours, a high alchemy value of 24.9k gp, and item ID 1347.

View on OSRS Wiki

Rune Warhammer shows an active flip setup with a margin of +262 gp and 66,749 trades over the last 24 hours.

At the buy limit of 70 every four hours, max profit per cycle is about 18.3k gp — high margin with healthy liquidity.