11. Remove rust or lacquer from metal surfaces by sanding with steel wool or fine emery cloth . 12. Wire brush, wire wool and emery cloth are commonly used to prepare plumbing joints for connection. 13. Or use water and emery cloth . 14. After filing, wrap the tool in emery cloth and draw it back and forth across to polish the work surface. 15. Remove rust and dirt from the pivot hole with a small wire brush or fine emery cloth rolled into a cylinder. 16. First, remove any deep scratches with fine emery cloth or by rubbing them with a paste made of pumice powder and water. 17. The only tools and materials needed are fine steel wool or emery cloth , non-acid soldering flux, lead-free solder and a propane torch. 18. A final trick if needed : sand with fine to medium-fine sandpaper or emery cloth ; if you use emery cloth, use it with water. 19. A final trick if needed : sand with fine to medium-fine sandpaper or emery cloth; if you use emery cloth , use it with water. 20. Dirty or corroded prongs will not conduct electricity, so sand them with fine sandpaper ( do not use steel wool or emery cloth ).
