A friend asked me to get the rust off the hammer of his Blackhawk. One side must have been laying against a water magnet, that side was coated in fuzz. The hammer is white steel, probably not stainless and not blued. It is not mirror smooth polished but has very fine grinding marks. I have rubbed it down with 0000 wool soaked in Corrosion-X. The metal still appears stained. Do you think the corrosion-x will continue to remove the stain or do I need to keep going? Can I remove the stain without polishing the metal? I do not want to change the original finish. Thanks!