Comes with 6 high concentrically steel collets, 1/32-, 1/16-, 5/64-, 3/3-2, 7/64-, 1/8-inch * 34 industrial quality bit and cutters and blow-molded storage case * Ideal for grinding, polishing, cleaning, cutting and engraving * High-revving motor has full-wave electronic speed control * 5,000-20,000 rpm,110-120 VAC, 60HZ, 1/8 horsepower, 9 inches long, 1.3 pounds