Wera Tools 05066447001 – 868/1 BTZ Square-Plus Bits, # 3 x 25 mm, 1/4 Hex

The Wera 05066447001 BiTorsion bits are the perfect choice for professionals who demand durability and reliability from their tools. With an elastic Torsion zone that diverts kinetic energy from peak loads and a softer BiTorsion zone that prevents the bit tip from twisting under those same loads, these bits provide an extended service life that’s hard to beat.

Thanks to their universal design and tough viscousness, these bits are ideal for use in a wide range of applications. With a ¼” hexagon design, they’re suitable for use with holders as per DIN ISO 1173-D 6.3, making them a versatile addition to any toolbox. Whether you’re a professional contractor or a DIY enthusiast, you’ll appreciate the outstanding performance and durability of the Wera 05066447001 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.

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.

Higher peak loads are minimised through the torsion effect of the bit shaft (Phase 2). This effect is achieved with a specific heat treatment after the hardening process of the bits. This reduces the hardness of the shaft in comparison to the drive tip

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 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.

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