Section 15 Base metals and articles of base metal 72 Iron and steel 72 15 Other bars and rods of iron or non-alloy steel. 72 15 10 Of free-cutting steel, not further worked than cold-formed or cold-finihed 72 15 10 00 Of free-cutting steel, not further worked than cold-formed or cold-finihed Commodity Code Description 72 15 10 00 000 Of free-cutting steel, not further worked than cold-formed or cold-finihed