5 pounds of #61 Rapid Polish (a sub micron aluminum oxide polish). This kit is made up of 5x as much grit and polish as the standard kit for about 3.3x the cost. More Information. Warning: Never dispose of used grit, polish or rock slurry down a drain. Το καρβίδιο https://siliconcarbidecantileverp26936.blogacep.com/34095400/5-simple-techniques-for-silicon-carbide-sandpaper-menards