Wera '867/1' Extra Tough BiTorsion 25mm TX30 Screwdriver Bits - Pack of 10

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. 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. 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.

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