Performance Tool W50037 146-Piece Rotary Tool Stone Accessories Assortment Set contains: Drum sanders, polishing stones, cutting wheels, buffing compound, drill bits and more Aluminum Oxide Grinding Tools Ideal for hobby, craft, jewelry, woodworking and more Accessories for fine detail work on jade, ceramic, glass, wood, hardened steel, cast iron, stainless Set contains: Drum sanders, polishing stones, cutting wheels, buffing compound, drill bits and more Aluminum Oxide Grinding Tools Ideal for hobby, craft, jewelry, woodworking and more Great for all types of detail work in both hard and delicate materials. Accessories for fine detail work on jade, ceramic, glass, wood, hardened steel, cast iron, stainless