High-quality Wera micro screwdriver set for precision mechanical fastenings. For TORX security screws: TORX BO screws have a protruding pin in their drive profile. This prevents unauthorized loosening, as standard TORX tools cannot operate these screws. Only special TORX BO tools feature a hole that accommodates the pin. By resting the hand on the rotating cap and utilizing the quick-turn zone below the cap, rapid spinning is possible. Time-consuming repositioning is eliminated. The power zone with integrated soft zones ensures the transfer of high loosening and tightening moments. The precision zone guarantees the correct torque angle during adjustment work. The Wera Black Point tip provides accuracy and optimized corrosion protection.