High quality bits with Torsion zone – where kinetic energy is diverted from peak loads. This greatly extends the product service life. Extra-hard; ΒΌ hexagon suitable for holders as per DIN ISO 1173-F 6.3. Features and Benefits: • Suitable for Pozidriv screws • Torsion design against premature wear • Particularly hard for semi-hard materials • 1/4 hexagon drive (Wera connecting series 4) Contents: 855/4 TH bits PZ 2 x 50 mm