High quality bits for recessed TORX® screws. The bore hole in the bit and the pin in the TORX® BO screw prevent any unauthorised loosening – secure fastening. Tough viscous for universal use. 1/4" hexagon, suitable for holders as per DIN ISO 1173-D 6.3.\n\n- For recessed TORX® screws with securing pin\n- Ductile and tough for hard materials\n- TORX® bit with bore hole on the output side\n- 1/4" hexagon drive (Wera connecting series 1)\n- Suitable for Bosch, Fein, Holz-Her, Lecreux, Metabo