|43,700 per hour|
950 x Iron bar (89,300)
4,750 x Iron knife (133,000)
Smithing iron knives is profitable since one iron bar at 94 coins produces five iron knives worth 140 coins, thus totalling 46 coins profit. Players can produce between 900 and 1,000 iron knives in an hour. That means the profit margin falls between 41,400 and 46,000 hourly.
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