Max Level: 5
Catalyst: 5 Iron, 1 Coal, 1 Mini-Furnace
Effect: Allows character to refine 5 Iron and 1 Coal into 1 Steel using a Mini-furnace. Skill value is (30+5*SkillLV)%. JobLV, DEX and LUK (in this order) further increase this chance.
Success chance in %: Skill Value + JobLV * 0.2 + DEX * 0.1 + LUK * 0.1