Granite clamp

Granite Clamp is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "A strong clamp, used for hardening granite maul blocks."

It has a Grand Exchange buy limit of 50 every four hours, a high alchemy value of 3.0k gp, and item ID 12849.

View on OSRS Wiki

Granite Clamp shows an active flip setup with a margin of +110.5k gp and 570 trades over the last 24 hours.

At the buy limit of 50 every four hours, max profit per cycle is about 5.53m gp — high margin with healthy liquidity.