Conventional bits are not made for extreme requirements and
will quickly wear during use.
These Impaktor Impact screwdriver bits have diamond particles on the bit tip that help them cling to the screw and reduce the cam-out forces which can make the screw slip out. Therefore, the contact pressure for machine screwdriving is reduced. 

Depending on the output, Impaktor bits have up to 5 times longer durability compared to conventional or torsion type bits.
The Impaktor bits are particularly suitable for use with powerful cordless impact screw driver guns.

Impaktor Screwdriver Bits