Terminate screws faster—and with fewer broken bits. Wiha's TerminatorBlue Phillips Impact Bits—proven toughest. 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 you 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.