Wera 7400 ESD series Kraftform Torque screwdrivers, with factory pre-set value (0.1-1.5Wera torque screwdriver. Safe protection against electrostatic charge and associated damage. With a factory pre set torque value set to the smallest scale value. For all applications, where the same constant torque and repeat accuracy are required. The torque can be changed with an extra tool within the measuring range (re calibration kit can be ordered with the code number 05137003001). Afterwards you can check the set value using an off the shelf