Description Grit: Coarse, Medium, Fine(6#, 16#, 30#, 60#, 80#, 150#, 220# etc); Bond: Super Soft, Soft, Medium Hard, Hard, Super Hard; Wet or Dry Use. Main Market: America, Australia etc Advantage: 1. Combination of superior diamonds and an extremely durable and unique matrix; 2. Removes stock quickly and efficiently to greatly reduce your product and labor cost; 3. Lasts much longer than competitive products and will not glaze; 4. Amazing results on most types of concrete from soft to very hard.