A great kit for any job. The 2-inch 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 drive bits. The 1/4-inch 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.