Cod. 93532
Blade-driving bush for bits

Blade-driving bush for bits, with spring and ring for stroke end.
You have to put the blade-driving bush on bits to not to damage the areas around the screw's head.
The correct bush's diameter is the nominal one just more little than the head screw's diameter (for ex. head screw's diameter 7,5 mm, bush's diameter 7 mm).
Article to exhaustion.