855/1 BDC SB bits, PZ 2 x 25 mm, 2 pieces 2x 855/1 BDC bits: PZ 2 x 25 mmBits for Pozidriv* screws with tiny diamond particles on the bit tip. This ensures a secure fit of the bit in the screw, reduces the contact pressure required and lowers the risk of slipping. Comes with Torsion zone where kinetic energy is diverted from peak loads. This greatly ext