Torque screwdriver set Wera 7440, 27 pieces, torque range 0.3–6 Nm

The Wera 7440 torque screwdriver set (27 pieces) provides a compact, adjustable solution for precise tightening tasks with a torque range of 0.3–6 Nm. Designed for work on electronics, instrumentation and small mechanical assemblies, the set combines a torque-controlled screwdriver handle, interchangeable bits and an organized storage tray to keep components accessible and protected. The toolset enables reproducible torque application to prevent damage from over-tightening while maintaining efficient workflow for both professional technicians and informed hobbyists.

Advantages

The set offers an adjustable torque mechanism calibrated across 0.3–6 Nm for fine control of fastening force, helping to protect sensitive components and threaded connections. A selection of 27 pieces includes a variety of precision bits and extensions, reducing the need to switch between separate tools. The compact case keeps tools neatly arranged for quick selection and safe transport. Built to Wera quality standards, the components are engineered for repeated use and consistent performance.

Suitable for

• Electronics assembly and repair
• Precision mechanical assemblies (small motors, sensors)
• Maintenance of IT equipment and servers
• Hobbyist projects requiring controlled torque (drones, RC models)
• Laboratory and instrument calibration tasks

Key specifications

• Torque range: 0.3–6 Nm
• Number of pieces: 27 (handle, bits, extensions and storage)
• Adjustable torque mechanism with clear scale
• Interchangeable precision bits suitable for small fasteners
• Compact, organized storage case for tool protection

How to use

Select the appropriate bit for the fastener and insert it into the torque screwdriver. Set the desired torque value within the 0.3–6 Nm range using the adjustment collar or scale on the handle. Apply the tool to the fastener and tighten until the torque mechanism indicates the set value—either by an audible click or tactile release depending on the tool model—then stop turning. For repeatable results, use the same torque setting and technique for all identical fasteners and inspect threaded parts for cleanliness and correct engagement before final tightening.

Usage recommendations

Regularly verify torque accuracy by comparing with a calibrated torque reference and keep bits clean and free of burrs. Avoid using the torque screwdriver as a general hand driver at high leverage beyond its specified torque range. Store the set in its case to protect the torque mechanism and bits from damage and contamination.