PURUI POLISHING 6 PCS 6 Inch Polishing Wheels Kit for Bench GrinderThis polishing kit is used for polishing metals to get a mirror surface, such as aluminum alloy, aluminum, brass, copper, bronze, gold, silver, stainless steel, steel, iron etcThis polishing kit can be installed on a bench grinder which with 1/2 Inch arbor shaft directly or screw into the buffing wheels on the bench grinder spindle adapter directlyThis Jewelry Polishing Kit includes1PC 6 Inch X 42Ply yellow muslin buffing wheels with 1/2 Inch arbor hole, yellow treated, stiffer, used for initial polishing to remove the scratch, burrs, dusts from the workpieces1PC 6 Inch X 60Ply white muslin buffing wheels with 1/2 Inch arbor hole, soft, used for final mirror polishing1PC 6 Inch X 40Ply loose canton flannel buffing wheels with 1/2 Inch arbor hole, extra thick, very soft, used for final mirror polishing1PC 100g bar brown tripoli buffing compound used with yellow muslin buffing wheels together for initial polishing1PC 100g bar all-purpose blue buffing compound used with white muslin buffing wheels or flannel buffing wheel together for final mirror polishing1PC 100g bar jewelers rouge buffing compound used with white muslin buffing wheels or flannel buffing wheel together for final mirror polishing