70322 is a 3.5inch, 2 pack, torx T30, TerminatorBlue impact bit (inch). TerminatorBlue Torx 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. With TerminatorBlue Torx Impact bits user get the tightest-fit precision-machined driver tips from the company that sets the standard for precision. Wiha's exact-fit Torx 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.