|20,000 per hour|
950 x Iron bar (108,300)
4,750 x Iron knife (128,250)
Smithing iron knives is profitable since one iron bar at 114 coins produces five iron knives worth 135 coins, thus totalling 21 coins profit. Players can produce between 900 and 1,000 iron knives in an hour. That means the profit margin falls between 18,900 and 21,000 hourly.
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