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 & by ensuring an exact fit of the bit to phillips & pozidriv 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 & are 50 mm long.
also available in plastic boxes suitable for the consumer
pozidriv no. 3 x 50 mm.