Torque wrench could save your Life while Travelling - Why use a torque Wrench 

If you are travelling with your caravan, camper trailer or overlanding you will get a flat tyre at some point and need to change the wheel. As you are miles from anywhere and possibly not in ideal wheel changing setup buy your self the cheapest torque wrench you can find and throw it in your supplies. Then you will know if you are doing the wheel nuts up correctly and can safely get to the next town