867/4 Btz Pz Extra Tough Bits

BiTorsion bits for Pozidriv screw with the torsion zone into which kinetic energy is dissipated during peak loads. This significantly increases the product life. Extra-hard design. 1/4" hexagonal, suitable for holding tools as per DIN ISO 1173-D 6.3. * WER30790A: PZ1/25mm * WER30790B: PZ2/25mm