Expert Quality, double - sided, twin size push - through torque wrench. Enables users to operate the wrench with both 1/4" square drive and 3/8" square drive sockets. For clockwise and anticlockwise threads easy adjustment knob allows simple setting of the micrometer type mechanism. Each torque wrench is individually tested and calibrated to the DIN - ISO 6789 standard and Supplied with a calibration certificate. Display packed.