Features: Kit includes polishing stone, stone polishing wheel with shank, sandpaper disc, collet, copper brush, sanding band, steel wire brush, etc. Suitable for engraving, grinding, polishing, milling, brushing, metal surface cleaning, derusting, deburring, etc. Great for all types of detail work in both hard and delicate materials. Perfect for the micro electronic devices and other industries(fine detail work on jade, ceramic, glass, wood, hardened steel, cast iron, stainless steel). With a storage box for convenient storage and carry.