Diamond dremel bit featuring a 2 in 1 dual grit for both nail grinding and polishing. Large bit features 80 grit exterior & 120 grit concave centre for final nail polishing. High quality diamond nail grinding tool for the professional as well the home groomer. Safe to use. These diamond dremel bits provide an easier alternative to those pets that are sensitive with nail trims. Diamond dremel bits do not heat up like the standard sandpaper bits. Diamond dremel bits last for years. Easy to maintain and clean. Comes in small, medium, large or a pack of all three sizes. Fits all standard dremel brand models.