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BTH- (extra-hard) and BTZ- (tough) bits have an additional tempered BiTorsion zone, which reduces the hardness of the shaft by about 20 % in comparison to the drive tip.This means that the peak loads that cause bit breakage and premature wear are absorbed in this zone – something which enhances the service life of the bits.
  • BTH- (extra-hard) and BTZ- (tough) bits have an additional tempered BiTorsion zone, which reduces the hardness of the shaft by about 20 % in comparison to the drive tip.This means that the peak loads that cause bit breakage and premature wear are absorbed in this zone – something which enhances the service life of the bits.
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  • 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.
  • “Take it easy" tool finder with colour coding according to profiles and size stamp – for simple and rapid accessing of the required tool.
  • 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 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.
  • 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.
  • 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.
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Wera 05059910001 - 855/4 Bth Pz 1 X 50 Mm Pozidriv Bits, Bitorsion

$4.99
SKU:
WER05059910001
UPC:
4013288034335
Weight:
0.23 LBS
Availability:
Special Order: Usually Ships in 10-15 Business Days.
Shipping:
Calculated at checkout
Shipping:
Calculated at checkout
Minimum Purchase:
10 unit(s)
Qty:
Call us: 1-800-401-7980 Shop in store

Product Details

855/4 BTH bits, PZ 1 x 50 mm

Torsion bits for Pozidriv* screws with elastic Torsion zone – where kinetic energy is diverted from peak loads – and softer BiTorsion zone to prevent the bit tip from twisting under peak loads. This greatly extends the product service life. This provides the best possible durability together with the matching holder. Extra-hard; 1/4" hexagon, suitable for holders as per DIN ISO 1173-F 6.3. * Pozidriv = registered trademark of European Industrial Service Ltd.

  • Suitable for Pozidriv
  • Particularly hard for semi-hard materials
  • BiTorsion zone to absorb peak loads
  • 1/4" hexagon drive (Wera connecting series 4)
  • Take it easy tool finder: colour coding according to profile and size

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