This item is a set of 100pcs grinding burrs which fit for or other brand rotary tools. With portable box, lighweight design, the kit is easy to carry and store. Comes with various shapes of burrs oto meet your using requirements. Great for home improvement, hobby, craft for diy polishing, engraving, cutting, grinding, drilling buffing/ polishing wood, metal grinding, etc. Feature - ColorAssorted Color - Material: Metal - Pakage Size: 21.3 x 13.8 x 4.8 cm ( W x H) - diameter: 1/8-inch diameter - 100pcs rotary tool accessories kit, including sanding bands, mandrels, cut-off wheels, grinding stones, polishing wheels, woolen wheels, woolen points, silicon carbide, dressing stone, sanding discs, , burrs, drills, and polishing paste. - burrs, rust, dust, and the oxide layer. Durable, not easy to weat out, . - Their sponge-like consistency enable them get into unusual curves or angles, polishing and grinding all kinds of rough surface - Suitable for metal surface cleaning, derusting, polishing, grinding, dusting, and stripping residue. - With portable box, lighweight design, the kit is easy to carry and store. Great for home improvement, hobby, craft for diy polishing, engraving, cutting, grinding, drilling buffing/ polishing wood, metal grinding, etc. Package list: 200 x Rotary tools set