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 satin polishing
