Features: 1. This is a set of sharpening shank tools, which are used for polishing and grinding. 2. Adopting high quality abrasive grain, high hardness, durable and not easy to wear. 3. Even granularity distribution makes the polishing work just a breeze, and the abrasive grains are not easy to fall off. 4. Provides 100pcs grinding head, practical and economical. 5. Widely used for polishing or repairing on the surface of the plastic, metal and wood, jade, etc. Specification: Material: Ceramic + Metal Quantity: 100pcs Shank Diameter: 3mm/0.12in Package Weight: Approx. 411g/14.5oz Package list: 50 * Bullet Shape Grinding Head 50 * Cylinder Shape Grinding Head Note: Due to the difference between monitors and light effect, the pictures may not reflect the actual color of the item. 1、This is a set of sharpening shank tools, which are used for polishing and grinding. 2、Adopting high quality emery, high hardness, durable and not easy to wear. 3、Even granularity distribution makes the polishing work just a breeze, and the abrasive grains are not easy to fall off. 4、Provides 100pcs grinding head, practical and economical. 5、Widely used for polishing or repairing on the surface of the plastic, metal and wood, jade, etc.