Synonyms for abrasive

sharpener, cutter, grinder, grindstone, scarifier, polisher, grater, rasp, file, millstone, sander, sandpaper, sharpening stone, whetstone, brush.

Types of abrasives include: file, sandstone, pumice, carborundum (trademark for silicon carbide), corundum, diamond, emery, emery cloth, emery paper, oil stone, chalk, salt, sanddust, sandpaper, shagreen, steel wool, tripoli.