Product Details The coarse and medium grades wear down quite fast so you may want to consider buying a few of each. The polishers come in four different grades: • Satin (dark blue) – for producing a satin matt finish • Coarse (white) – for grinding away excess metal and pre-polishing • Medium (black) – for smoothing and refining edges and surfaces • Fine (blue) – for high sheen polishing • Extra fine (pink) – for ultra-high sheen polishing
