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Rapid Online - Rapid Electronics Ltd.£3.55Visit shop Wera 05057604001 Impaktor Diamond Hard Bit For Hex Screws 4.0 x 25mm
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Amazon£19.34Visit shop Wera 05057644001 4 x 50 mm "Impact 840/4 IMP DC" Bits for Hex Socket Screws - Silver
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This guide is for professionals and DIY enthusiasts working with hexagon socket screws, especially when using impact drivers. The Wera 840/1 IMP DC Hex-Plus Impaktor bits offer exceptional durability and a secure fit, significantly reducing cam-out and damage to screw heads, even under extreme conditions. While highly effective, users should ensure they have the correct size bit for the screw to maximize the benefits of the Hex-Plus and diamond coating technologies.
| Model Part Number | 840/1 |
|---|---|
| Brand | Wera |
Impaktor technology is Wera's design for bits used with impact drivers. It enhances durability and service life by optimizing material properties and geometry to withstand high torque and frequent impacts.
The rough diamond-particle coating on the bit tip increases friction resistance. This 'bites' into the screw head, significantly reducing the chance of the bit slipping out (cam-out) and preventing damage.
Hex-Plus provides a larger contact surface area within the hexagon socket of the screw. This reduces the stress concentration on the edges, minimizing the notching effect and preventing damage to the screw head.
Yes, they are compatible with standard 1/4" hexagon bit holders used in manual screwdrivers. However, their primary design benefits are realized when used with impact drivers.
The specific product described (05057603001) is for 3mm hexagon socket screws and is 25mm long. Always select the bit size that precisely matches the screw head for optimal performance and to avoid damage.
Due to the Impaktor technology and diamond coating, these bits offer an above-average service life, even under extreme conditions. However, lifespan depends on usage intensity, screw quality, and proper application.
Yes, they function perfectly well as high-quality standard bits for manual screwdrivers or drills. The enhanced features provide benefits such as reduced cam-out and longer tool life even in lower-torque applications.
Ensure you are using the correct size bit for the screw. Clean both the bit tip and the screw head to remove any debris. The diamond coating is designed to minimize slippage, but an incorrect size will override this feature.
Check for debris or damage on the bit tip. Clean the bit and the screw head. Ensure the bit is properly seated in the bit holder. If wear is significant, it may be time to replace the bit.
Verify that your bit holder is a standard 1/4" hexagon drive compatible with DIN ISO 1173-D 6.3. Ensure the bit holder's locking mechanism is functioning correctly.
Setup: These bits are designed for use with standard 1/4" hexagon bit holders, commonly found in impact drivers, drills, and manual screwdrivers. Simply insert the bit into the holder until it clicks or is securely seated. Ensure the holder is compatible with DIN ISO 1173-D 6.3 specifications.
Compatibility: The 1/4" hexagon drive makes these bits compatible with a wide range of power tools and manual drivers. They are specifically designed for hexagon socket screws.
Care: To maintain optimal performance and longevity:
