... stone Catalog:Description:1. Most modern galvanisation process, safe and lasting diamond coating, optimal working results;2. Ideal for shaping ... be used as glass drill bit, diamond drill bit, jewelry drill bit and engraving bit;4. 3 grits for ... main products range from diamond burs, carbide burs, dental polishers, sintered diamonds, diamond disc, polishing brushes and mounted stone etc.Welcome ...