Wera Safe-Torque A 1 SHK Tool Set 1Torque wrench with slide over mechanism. Once the set torque has been reached, the tool cannot be over tightened, so that excessive torque cannot be applied. Setting range of 2 to 12 Nm for controlled clockwise and counterclockwise torque operation. Easy setting and saving of the default value: The audible and tactile clicks on reaching the scale values facilitate the safe setting of the desired torque value. With Torque Lock function for use as a