The Grip 71100 12-Piece Impact Star Driver Bit Set is a great addition to any garage. With a variety of star bits, you are sure to have what you need when you pick up the Grip 71100. Features: * Can be used with both impact ratchets and wrenches * Drop forged, chrome molybdenum steel * Dull black finish resists rust and corrosion What"s In The Box: * (6) 1/4-inch drive bits - T10, T15, T20, T25, T27 and T30 * (5) 3/8-inch drive bits - T40, T45, T47, T50 and T55 * (1) 1/2-inch drive bit - T60