Peak forces that occur in power tool applications often result in premature wear of bits or damage to the screw head. This usually occurs during initial power-up and the when the screw comes to a standstill. Screwdriving could become more productive and safer if these peak loads could be minimised. The Wera BiTorsion system prevents premature wear. The service life of the tool is extended and the productivity of power tool applications significantly increased.
851/1 BTH bits
- For Phillips screws
- Particularly hard for semi-hard materials
- BiTorsion zone to absorb peak loads
- 1/4" hexagon drive (Wera connecting series 1)
- Take it easy tool finder: colour coding according to profile and size
Product features
BiTorsion Bits
Two cushioning torsion zones
The effectiveness of the BiTorsion system comes from a combination of two shock-absorbing spring elements. Both, bits as well as holders have a cushioning torsion zone that diverts the kinetic energy away from the drive tip during peak loads.
BiTorsion phase 1
The torsion spring integrated into the unique BiTorsion holder absorbs lower levels of peak loads (Phase 1). Any overloading of this spring is effectively prevented by means of a supporting mechanism.
BiTorsion phase 2
Higher peak loads are minimised through the torsion effect of the bit shaft (Phase 2).
Above-average service life
Even the service life of conventional bits is enhanced with the use of the BiTorsion holder and the BiTorsion bit also functions in a normal holder.
Prevents premature wear
The optimally coordinated features of the torsion zones on the bit and holder permit a phased yield when under strain. The two-phase system prevents premature wear. Moreover, a long tool service life is also ensured by the hardness of the bits that matches the respective application.
Product details
Facts and figures
Part number
05056410001
05056412001
05056414001
PH 1
PH 2
PH 3
25
25
25
1"
1"
1"
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Product description
High quality bits for Phillips screws with Torsion zone where kinetic energy is diverted from peak loads. This greatly extends the product service life. Extra-hard design, ¼" hexagon, suitable for holders as per DIN ISO 1173-D 6.3.
