Providing high-quality, innovative products that lead consumers to live a better life is Team's mission. 20pcs wool felt polishing wheels have 10 cylinder-shaped grinding heads, 10 bullet-shaped, different sizes of head. The diameter of the whole felts' shank is 1/8""(3mm). They make polished goods clean and bright, best used for various mold, glass, medical equipment, metal, and many more. These wool felt grinding bits are ideal for the rotary grinding and polishing tool. The diameter of whole felts' shank is 1/8"(3mm). Felt polishing accessories may be used with or without polishing compound. Can be used with 421 polishing compound to produce a smooth finish. Ideal for polishing of most ferrous metals, stones, glass and ceramics. Ideal for the rotary grinding and polishing tool. The diameter of the whole felts' shank is 1/8"(3mm). Felt polishing wheels may be used with or without the polishing compound. Can be used with 421 polishing compounds to produce a smooth finish. Ideal for polishing of most ferrous metals, stones, glass, and ceramics. These wool buffing tips are ideal for the rotary grinding and polishing tool. Package Includes: 20 x Pieces of Dremel Rotary Tool Accessories.