After you grind and polish stone by hand, you use sandpaper with grits of different coarseness. Sandpaper has quite a few uses inside the Do it yourself sector, but its primary use will be to condition and smooth rough edges and surfaces on a variety of items made of wood, https://www.facebook.com/permalink.php?story_fbid=pfbid02jb53zu37QofZaLs88eBqzFXUb2bsn9emnCe9SDetdXnMhjyKp2T8VSzPYq63sA8fl&id=61562415773754&__cft__[0]=AZV9GJ-yMKq9mQddCX42hzY0H0Jr9efr-31TAcozHBw-WUp2v0TfBoDMTy68ehWnU7d5ePACBGBx07whPNqakCxWA1l9NIDJQ_mVerxNagBWZEhewo1iIxjOmdveZZEChgSuXFWuk-KaitLBrX-B6FwtXpAQSyKQgzDVDKijO5Z6J24rfFgo-KEVWY0tgMiVN5gcKi5XC99-GzlyoxpUAPDj&__tn__=%2CO%2CP-R