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WERA 855/4 BDC PZ bit Pozidriv, PZ 1 x 50 mm - 05059900001

Supplier number: WERA 05059900001 | EAN 4013288034120
9.47 tax incl.
€7.83 excl. VAT (incl. all environmental contributions)
On stock - immediately available

  • Ordered before 20:00 - delivered tomorrow 16/10/2026
  • Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
  • Delivery by DHL
  • Delivered from Belgium

Secure fastening with reduced cam-out

Practical benefits
  • Gripping Wera diamond coating: Tiny diamond particles bite into the screw head, reducing required contact pressure and preventing you from slipping out.
  • Absorbing BiTorsion zone: The dedicated torsion zone cushions peak torque loads, giving you a substantially longer bit service life during demanding fastening.
  • Extended reach for fasteners: The 50 mm length combined with a 1/4" hex drive allows you to easily access recessed PZ1 screw heads.

In a nutshell

The right choise for

Drive fasteners with confidence and precision using the Wera 855/4 bdc PZ1 bit. The specialised diamond coating bites directly into Pozidriv screw heads, significantly reducing required contact pressure and preventing cam-out slip. To protect against premature wear and breakage, the integrated BiTorsion zone absorbs harsh torque peaks during intense driving. Featuring an extended 50 mm length and a standard 1/4" hex drive, it easily accesses recessed screw locations in standard bit holders and chucks. This gives you dependable grip, increased control and a noticeably longer service life on demanding jobs.



€9.47
In stock - tax incl.

Product information

Key features according to our expert

  • Length: 50 mm
  • Drive profile size (bit): 1
  • Blade thickness: Not applicable
  • Type of drive profile (bit): Pozidriv
  • Connection size (bit): 1/4"
  • VDE approved: No
  • Bit profile: PZ1

Scope of delivery

  • 855/4 BDC bits, PZ 1 x 50 mm

Product description

Bits for Pozidriv* screws with tiny diamond particles on the bit tip. This ensures a secure fit of the bit in the screw, reduces the contact pressure required and lowers the risk of slipping. Comes with Torsion zone where kinetic energy is diverted from peak loads. This greatly extends the product service life; 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 screws
  • BiTorsion zone to absorb peak loads
  • Considerable reduction in the risk of breakage, significant increase in service life
  • Diamond coating for a secure fit in the screw, literally bites into the screwhead to prevent cam-out
  • 1/4" hexagon drive (Wera connecting series 4)

Application

  • Suitable for Pozidriv screws

Drive

  • 1/4" hexagon, suitable for DIN ISO 1173-F 6.3 bit holders

Design

  • BiTorsion for long service life, diamond-coated for secure screw fit. Take it easy tool finder: Output colour coding (black = Pozidriv) and large stamp to enable the desired bit to be easily located.

Features and benefits

  • 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.
  • One of the greatest problems with power tool applications is that the conventional bit easily slips out of the head of the screw (cam-out). This often destroys both the head of the screw and the tool. High resulting costs are incurred e.g. from damaged surfaces and screw connections that can no longer be loosened. Screwdriving will become safer and more economic if this problem of slipping can be minimised.
  • Today, the Wera diamond bit - manufactured with the technology specifically developed by Wera for this application - still sets the standard in terms of resilience and functionality. Wera bits with a diamond coating ensure a secure fit of the bit in the screw head.
  • The minute diamond particles applied to the tip of the tool literally "bite" into the screw and ensure an exact, anti-slip fit in the head of the screw. This secure fit protects the screw. The cam-out forces which compel the user to apply greater pressure to the screw are considerably reduced.
  • Ideal for sensitive materials
  • 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.
  • 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.

All Features

Length
50 mm
Drive profile size (bit)
1
Blade thickness
Not applicable
Type of drive profile (bit)
Pozidriv
Connection size (bit)
1/4"
Vde approved
No
Bit profile
PZ1
Tip size
PZ 1
  • Brand WERA
  • EAN 4013288034120
  • Supplier number WERA 05059900001

Frequently asked questions about this product

Answered by specialists
What type of screws is this bit suitable for?
This bit is designed for Pozidriv screws in size PZ1.
What is the drive size of this bit?
It features a standard 1/4" hexagon drive, compatible with standard bit holders and chucks.
What is the overall length of this bit?
The overall length of this bit is 50 mm.
What is the benefit of the BDC coating?
The diamond coating provides a secure grip in the screw head to prevent cam-out slipping.
Is this bit VDE-insulated for electrical work?
No, this bit is not VDE certified and not insulated for working under electrical voltage.
Questions about this product?

Our product specialists are happy to help with any questions about this range. Call, email or chat with us!

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