Chisel

Chisel is a free-to-play item on the OSRS Grand Exchange in the skilling category.

In-game examine text: "Good for detailed Crafting."

It has a Grand Exchange buy limit of 40 every four hours, a high alchemy value of 1 gp, and item ID 1755.

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Chisel shows an active flip setup with a margin of +10 gp and 2,049 trades over the last 24 hours.

At the buy limit of 40 every four hours, max profit per cycle is about 400 gp — high margin with healthy liquidity.