HP diamond burs: HP, medium, diamond coated for grinding, engraving, carving on metal, wood, bone, jade, PVC, glass, stone Catalog:Description ... 3. Also for grinding and engraving on metal, wood, bone, jade, PVC, glass and stone carving, can be ... dental surgical & laboratory.Our main products range from diamond burs, carbide burs, dental polishers, sintered diamonds, diamond disc, polishing brushes ...