100pcs Electric Polishing Buffing Accessories Grinding Bits Set with 1/8 Shank Wool Sesame Rubber Jade Cowhide Abrasive Rotary Tools Features: Package: 100pcs mixed shipment, wool, sesame, rubber, jade and cowhide heads with 1/8" shank, including 50 cylinder shaped grinding heads and 50 shaped with durability. Size: The diameter of head respectively are 4mm/5mm/6mm/8mm/10mm and the shank is 3mm(1/8in) in diameter with universal usage with electric drills, hanging mills, grinders. Wide Application: Ideal for grinding, polishing and engraving to make the objects cleaner and brighter. Perfect for metal, jade, various molds, , gold and silver jewelry, non-metallic surfaces, etc. Multiple Function: There are 5 kinds of polishing heads made of different material, and they have different levels of grinding and can better meet your daily tasks. Storage: They are stored in a plastic box, which is easy for you to store and take e. Specifications: Material: Wool + Sesame + Rubber + Jade + Cowhide Diameter of Head: 4mm + 5mm + 6mm + 8mm + 10mm Package Size: 12 * 12 * 7cm / 4.7 * 4.7 * 2.8in Package Weight: 430g / 15.2oz Package List: 100 * Polishing Heads