Introducing the NEW HART 68-Piece Impact Driver Bit Set—a versatile kit for every job. The 2” bits include precision milled tips which minimize stripping of fasteners. The Torsion Zone absorbs torque delivering up to 3 times longer life than standard non-impact bits. The ¼” hex shank provides holding power and quick bit change. Includes 68 driving bits in a variety of types and sizes to handle all your fastening needs and a storage case.