DEWALT DT70512T Impact Torsion Screwdriver Bit Set, 14 PieceThe DEWALT DT70512T Impact Torsion Screwdriver Bit Set contains a selection of high performance impact torsion bits that have been designed for use with impact drivers. Preferred by professional users for maximum hold, tight access and no run out. The CNC precisely machined bits have a torsion zone that absorbs peaks in torque allowing optimum bit flex for maximum life in tough Impact or High Torque industrial applications. The bit holder features a