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    855/4 BTH bits

    Pozidriv
    Bits with Take it easy tool finder

    Bits with Take it easy tool finder

    Take it easy tool finder with colour coding according to profiles and size stamp - for simple and rapid accessing of the required tool.
    BTH- and BTZ-Bits

    BTH- and BTZ-Bits

    With BiTorsion zone to cushion peak loads.
    855/4 BTH bits
    • Suitable for Pozidriv screws
    • BiTorsion zone to absorb peak loads
    • Considerable reduction in the risk of breakage, significant increase in service life
    • Particularly hard for semi-hard materials
    • 1/4" hexagon drive (Wera connecting series 4)
    • Take it easy tool finder: colour coding according to profile and size
    BiTorsion Bits

    BiTorsion Bits

    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.
    Two cushioning torsion zones

    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

    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

    BiTorsion phase 2

    Higher peak loads are minimised through the torsion effect of the bit shaft (Phase 2).
    Above-average service life

    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

    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.
    Bits with Take it easy tool finder

    Bits with Take it easy tool finder

    Take it easy tool finder with colour coding according to profiles and size stamp - for simple and rapid accessing of the required tool.
    BTH- and BTZ-Bits

    BTH- and BTZ-Bits

    With BiTorsion zone to cushion peak loads.
    855/4 BTH bits
    • Suitable for Pozidriv screws
    • BiTorsion zone to absorb peak loads
    • Considerable reduction in the risk of breakage, significant increase in service life
    • Particularly hard for semi-hard materials
    • 1/4" hexagon drive (Wera connecting series 4)
    • Take it easy tool finder: colour coding according to profile and size
    BiTorsion Bits

    BiTorsion Bits

    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.

    Article description

    Torsion bits for Pozidriv screws with Torsion zone where kinetic energy is diverted from peak loads. This greatly extends the product service life. This provides the best possible durability together with the matching holder. Extra-hard; ¼" hexagon, suitable for holders as per DIN ISO 1173-F 6.3.
    855/4 BTH bits
    BiTorsion Bits
    Two cushioning torsion zones
    BiTorsion phase 1
    BiTorsion phase 2
    Above-average service life
    Prevents premature wear
    Bits with Take it easy tool finder
    BTH- and BTZ-Bits
    Code mm inch
    05059910001 PZ 1 50 2"
    05059912001 PZ 2 50 2"
    05059914001 PZ 3 50 2"

    Learn more about this product

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