Description
Wera Tools 05056402001 – 851/1 BDC Bits, 1/4″ Hexagon Drive, PH 2 x 25 mm
The Wera Tools 05056402001 is a set of high-quality screwdriver bits designed for use with Phillips screws. The set includes PH 2 x 25 mm bits with a 1/4″ hexagon drive, making them compatible with the Wera connecting series 1.
The bits feature a BiTorsion zone that absorbs peak loads, reducing the risk of breakage and increasing the service life of the tool. The diamond coating on the bits ensures a secure fit in the screw, preventing cam-out and providing a strong grip.
The bits are color-coded according to profile and size, making it easy to find the right tool for the job. Whether you’re a professional mechanic or a DIY enthusiast, the Wera Tools 05056402001 is an excellent choice for reliable and efficient screwdriving.
Particularly when applications involve sensitive materials or high-quality surfaces are involved, bits with a diamond coating ensure that work is done safer, faster, and at a lower cost.


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 the 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.
Diamond-coated Bits
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 economical if this problem of slipping can be minimized.


Secure fit in the screw head
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.
Reduced cam-out forces
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.


Perfect fit
Ideal for sensitive materials
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.


“Take it easy” tool finder
“Take it easy” tool finder with colour coding according to profiles and size stamps – for simple and rapid accessing of the required tool.
General Attributes | |
|---|---|
| Product Weight | 0.01 LBS |
| Shipping Weight | 0.11 LBS |
| Product Height | 0.28 IN |
| Product Length | 0.98 IN |
| Product Width | 0.28 IN |
| Shipping Height | 0.59 IN |
| Shipping Length | 2.28 IN |
| Shipping Width | 1.34 IN |
| Country of Origin | Czech Republic |
Tools/Screwdrivers Template | |
| Type (Screwdrivers) | Philips |


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