Our special formulation, this high-quality ultra-fine polishing compound delivers the most outstanding performance on almost any metal. It is smooth enough for polishing gold yet tough enough on platinum and stainless steel. For best results, use with the NINJA SEE-THRU felt disc. Jewelry: an excellent choice for the final finish on gold, silver, stainless steel, platinum and more. Woodworking: perfect for the highest polish on tool edges: polish turning gouges and carving tools for the smoothest cut ever. Grade size equivalent: 9000 grit. 1oz Vial.