Wiha torquevario s torque screwdrivers wiha 26888 a screwdriver handle with slipping clutch for accurate tightening of screws etc the screwdriver is supplied with adjustment tool and has an integrated window scale for easy reading of the torque value when the required torque is reached the tool clicks and can be heard and felt clearly wiha 26888 torquevario s torque screwdriver 01 06nm