This is a new 100 piece rotary tool kit. Ideal for all types of cleaning, polishing, grinding, etc. This set of mini polishing tools are perfect for deburring, finishing, and polishing stainless steel, chrome, and precious metals. Each has a 1/8" shank. Comes in a wood box that measures approximately 8 7/8" x 6 3/16" x 1 3/4" You receive: 10 Stone grinding bits One brass wire wheel One nylon bristle wheel One brass cup brush One nylon bristle cup brush One nylon bristle brush One brass brush 2 Diamond coated bits 3 Twist burs One cutting wheel One diamond coated wheel 36 Sanding discs 10 Large sanding drums 5 Small sanding drums 5 Large wool polishing wheels 5 Small wool polishing wheels 10 Grinding wheels 2 Mandrels 2 Sanding drum mandrels One bottle of compound One sharpening stone