05056505001 Wera 851/1 TZ 1/4'' Hex Phillips Insert Bits are designed for phillips screws. Wera 851/1 TZ 1/4'' Hex Phillips Insert Bits are ductile and tough for hard materials and feature torsion design which means that torque peaks can be absorbed, preventing premature wear and enhances the service life.
Wera 851/1 TZ 1/4'' Hex Phillips Insert Bits are tough and viscous for universal use and are suitable for holders as per DIN ISO 1173-D 6.3.