The Pro-Graad Wet or Dry Diamond Hand Polishing 4 piece set includes: 1 each of 60#, 100#, 200#, 400# grit pads, which are ideal for applications on Stone, Marble, Granite, Porcelain/Ceramic Tile, Pottery, Glass, and Concrete for stone polishing, tile edging/trimming, glass deburring/edging/trimming, edge smoothing …