Witte Screwdriver Bits are made to very exacting standards.
They ensure maximum transmission of torque to the screw.
This is achieved by a special hardening process and by ensuring an exact fit of the bit to Phillips screws.
In addition there is a special recessed neck called the Flex-Zone which absorbs shock loads thus giving increased durability.
There is also a special coating of titanium nitride on the bit which increases their wear resistance.
The bits have 1/4in hexagon drive and are 50 mm long.
Also available in plastic boxes suitable for the consumer.