• For socket head screws
• Impaktor technology for above-average service life
• Particularly suitable for use with customary impact drivers
• 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)
• Take it easy tool finder: colour coding according to profile and size

High quality Impaktor bits for hexagonal socket screws. The Impaktor technology offers an above-average service life even under extreme circumstances. Enhanced friction resistance, thanks to the rough diamond-particle coating on the bit tip, prevents any slipping out of the screw head. Hex-Plus ensures a greater contact surface in the head of the screw. The notching effect is therefore reduced to a minimum and damage to the screw head more or less eliminated. ¼" hexagon, suitable for holders as per DIN ISO 1173-F 6.3.

The Wera Tools 840/4 IMP DC SB SiS Series is a high-performance tool designed specifically for professionals who work with socket head screws. This series is built to last, with innovative features that ensure durability and longevity.

One of the standout features of the Wera Tools 840/4 IMP DC SB SiS Series is its Impaktor technology. This technology ensures above-average service life, making it a highly reliable tool for even the toughest jobs. This series is particularly suitable for use with customary impact drivers, providing versatility and practicality for a range of applications.

The diamond coating on this tool ensures a secure fit in the screw, literally biting into the screwhead to prevent cam-out. This not only improves performance but also increases safety on the job. The 1/4" hexagon drive (Wera connecting series 4) ensures easy compatibility with other tools and accessories.

In addition, the Take it easy tool finder feature of the Wera Tools 840/4 IMP DC SB SiS Series makes it easy to find the right tool quickly and efficiently. The colour coding system, based on profile and size, allows users to quickly identify the correct tool for the job, saving time and reducing the risk of errors.

Overall, the Wera Tools 840/4 IMP DC SB SiS Series is an excellent choice for professionals who demand high quality and reliability from their tools. With its innovative design, durable construction, and easy compatibility with other tools, this series is sure to be a valuable addition to any toolkit.

"Take it easy" tool finder with colour coding according to profiles and size stamp - for simple and rapid accessing of the required tool.

For an above-average service life. Maximum utilisation of the material properties, a very special geometry - designed particularly to meet the extreme demands - as well a specific manufacturing process mean that Wera Impaktor tools have an above-average service life. Another product advantage is the coating of the Impaktor bits with minute diamond particles. These diamond particles reduce the cam-out effects - particularly high in power tool applications - which can lead to a slipping out of the screw head. The diamond particles literally bite themselves into the screw recess. This means that less contact pressure is required, something that greatly delays fatigue setting in in power tool screwdriving jobs.

For use with impact screwdrivers. Improve productivity when screwdriving with power tools.

Maximum utilisation of the

material properties, a very special geometry - designed particularly to meet the extreme demands - as well a specific manufacturing process mean that Wera Impaktor tools have an above-average service life.

Particularly high strength. Reduce the danger of premature bit breakage.

Torsion zone specially designed to absorb such forces and thereby protect the bit tip.

These diamond particles reduce the cam-out effects - particularly high in power tool applications - which can lead to a slipping out of the screw head. The diamond particles literally bite themselves into the screw recess. This means that less contact pressure is required, something that greatly delays fatigue setting-in in power tool screwdriving jobs.

Hexagon socket screws are a problem, because the contact surfaces that transfer the force of the tool to the screw are very narrow. The consequence: the head of the screw can be damaged, usually rounding out the recess. Hex-Plus tools have larger contact surfaces to prevent this, driving from the flats of the recess, rather than the corners. Good to know: Hex-Plus tools fit into every standard hexagon socket screw!