The wera 7441 vde adjustable torque screwdriver set is ideal for electrical applications and ensures safe work on components with loads up to 1000 volts the screwdriver allows simple and fast torque adjustment and produces a distinctly audible and noticeable excess load signal when the pre set value is exceeded it can be set to unlimited torque for manual loosening jobs and its accuracy meets the requirements of iso 6789 6 for tools up to 10 nm the screwdrivers kraftform handle is ergonomically