The Wera Adjustable Torque Screwdriver allows for torque-controlled tightening of fasteners to prevent damage to screws or workpieces, while ensuring the dependability of the screw connection. This makes it particularly useful in assembly and maintenance applications as well as anywhere that repeat accuracy is required. The required torque can be quickly set by hand, with an easy to read scale showing the current level of torque. Once the pre-set torque is reached, there is a distinctly audible and noticeable excess load signal. Rather than special blades, the screwdriver has a built in Rapidaptor that is suitable for use with normal 1/4′′ hexagon insert bits or even 1/4′′ sockets. Wera’s multi-component Kraftform handle, with special hard and soft zones, allows for fast working while protecting the palm of the hand. It also incorporates a non-roll feature to prevent the screwdriver from rolling away when it is put down. This torque level can be pre-set to a value between 0.3-1.2 Nm, or unlimited torque can be used for loosening seized screws. Measurement accuracy is +/- 6% in accordance with the European standard EN ISO 6789 and the torque screwdriver is supplied with a calibration certificate.