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855/4 BTZ bits

BiTorsion and conventional tools

The BiTorsion holder and the BiTorsion bit can, of course, be used independently of one another.

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.

Suitable for Pozidriv screws
BiTorsion zone to absorb peak loads
Considerable reduction in the risk of breakage, significant increase in service life
Tough for hard materials
1/4" hexagon drive (Wera connecting series 4)
Take it easy tool finder: colour coding according to profile and size

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

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.

BiTorsion and conventional tools

The BiTorsion holder and the BiTorsion bit can, of course, be used independently of one another.

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.

Suitable for Pozidriv screws
BiTorsion zone to absorb peak loads
Considerable reduction in the risk of breakage, significant increase in service life
Tough for hard materials
1/4" hexagon drive (Wera connecting series 4)
Take it easy tool finder: colour coding according to profile and size

BiTorsion Bits

855/4 BTZ bits

05059920001

Article description

BiTorsion bits for Pozidriv* screws with torsion zone into which kinetic energy is dissipated during peak loads. This significantly increases the product life. Tough, for universal use. 1/4" hexagonal, suitable for holding tools as per DIN ISO 1173-F 6.3.