Made of drop forged steel, wrenches are chrome plated and heat treated to achieve maximum wear. A raised panel provides additional strength and durability. Thirteen-piece metric set includes sizes 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm and 19 mm. Packaged in kit bag organizer. Available individually.