|-37,100 per hour|
950 x Iron bar (284,050)
4,750 x Iron knife (247,000)
Smithing iron knives is profitable since one iron bar at 299 coins produces five iron knives worth 260 coins, thus totalling -39 coins profit. Players can produce between 900 and 1,000 iron knives in an hour. That means the profit margin falls between -35,100 and -39,000 hourly.
It is strongly recommended to check the live prices on the Grand Exchange before making large investments in any method.
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