I have used this in a waterless router table on marble to finish off a large format 24 square tile. Also, a semi-circular bovine nose made from cut strips of marble 24" long and 3/4" wide. Feet had fewer butt joints. Polishing marble gives a lot of dust and silt. Therefore, wear a mask over your nose and mouth. Make the router outside. Your hair, everything will be thickly covered with silt.