CDI Torque Wrenches and Temperature Ranges
CDI click-style (“clicker”) torque wrenches: Avoid storing CDI clickers below 32 degrees Fahrenheit and above 120 degrees Fahrenheit. When a wrench is stored below freezing, you run the risk of developing condensation that can cause the internals to rust, affecting the accuracy and performance of the tool. Temperatures exceeding 120 degrees, meanwhile, will cause the grease inside of the wrench to melt and seep out, affecting performance and accuracy.
The ideal storage temperature for our CDI clickers is “room temperature” (roughly between 65 and 78 degrees Fahrenheit). The consistent temperature reduces the risk of the freeze/thaw cycle, helping to eliminate the possibility of condensation and rust over time. The ideal working temperature is between 40 and 110 degrees Fahrenheit.
Before the torque wrench is used, either in hot or cold temperatures, it should be exercised to get the internal parts and grease moving around. The best way to do this is to set the wrench to a low setting and flex or click the head 10 times in the same direction (in the clockwise position). Once the wrench has been exercised, it is ready to be used.
Deflecting beam torque wrenches: CDI Torque Products does not make this wrench. It, too, can be stored in a wide range of temperatures. Cold will affect performance more than heat, because in the cold, the molecules in the steel slow down and the beam becomes more stiff or rigid, thus affecting the reading on the scale. Like clickers, even beam or deflecting style wrenches should be exercised before use.
J.H. Williams Tool Group, a subsidiary of Snap-on