TH-Bits are hard bits with a torsion zone. Torsion bits absorb the damaging peak torque loads in the torsion zone. This prevents premature wear and enhances the service life of the bits.
851/1 TH bits
- For Phillips screws
- Torsion zone for absorption of peak loads
- Enhanced service life of the bits
- Particularly hard for semi-hard materials
- 1/4" hexagon drive (Wera connecting series 1)
Product features
TH-Bits

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Product description
High quality bits for Phillips screws. Screws can be applied without any damage to the surface. The Torsion design means that torque peaks can be absorbed. This prevents premature wear and enhances the service life. Extra-hard; ¼" hexagon, suitable for holders as per DIN ISO 1173-D 6.3.







