Quote Originally Posted by Suile View Post
I gave up on flatting rock pile finds on side walks.
I switch to a nice big piece of 60 grit sand paper blacked on a nice dead flat piece of lumber.
might buy courser sander paper if they go lower.
but it works awesome man your littery sanding and grinding away rock even after the paper part is gone.
The lowest grit usually available is 24 but that is like beach sand glued to paper, my wife used some in a press for ink transfer printing, the sandpaper really didn't do the press roller much good.