4-piece click-torque wrench set with three self-adjusting Joker socket wrenches. Designed for the proper tightening of screw connections during the installation and repair of refrigeration and air conditioning systems, as well as heat pumps. Click torque wrench in the unmistakable Wera design. Very robust construction with high accuracy according to DIN EN ISO 6789-1:2017-07. Easy adjustment and locking of the preset value. The audible and tactile engagement upon reaching the scale values additionally facilitates the secure setting of the desired torque value. The robust release mechanism guarantees a clearly audible and tactile release signal when the set torque is reached. Suitable for both right and left tightening and equipped with a 14x18 mm square drive for the use of corresponding socket tools. The three self-adjusting Joker socket wrenches 7880 replace several individual sizes of open-end wrenches thanks to their continuously and parallel-guided jaws. The required size automatically adjusts when applied to the hex nut or bolt. The ratchet function ensures quick and continuous screwing without repositioning. The use of corner width prisms allows for a return angle of only 30°.