70002 is a phillips #2, 1inch, TerminatorBlue impact bit (2 pack). TerminatorBlue phillips bits are impact rated for power tools and rigorously heat-treated to produce a bit lasting 120 times the service life compared to standard bits. Wiha's specially designed torsion zone absorbs the impact energy, allowing a maximum torsion flex that goes unmatched. With TerminatorBlue impact bits allows user to get the tightest-fit precision-machined Phillips driver tips from the company that sets the standard for precision. Wiha's exact-fit Phillips tips eliminate excessive bit-wobble for increased driver accuracy. The result is a highly stable engagement with the screw head and a reduction in fastener cam-out that can lead to injury or damage to finished materials.