36pcs Rotary Abrasive polishing wheels, (WHEEL COLOR MAY VARY) This set contains 36 tool bits for your Dremel machine Ideal for removing rust, corrosion from, any metal surface (e.g. brass, copper, etc.) Also for removing paint off wood or metal Wheel diameter is approximately 15/16" The shank size is 1/8" This is perfect for jewelers, metalsmiths, gunsmiths, locksmiths, and other professions Maximum operating speed 15,000/min NOTE: Pictures are for illustration purpose only, actual item may slightly vary in appearance and design