For many men this might not be a necessity (although it could still prove to be really convenient). Most of us won’t have much trouble getting the lug nuts off in order to change a flat tire, but our wives, teenage daughters, parents and grandparents may find this to be a considerable problem, especially if the wheels were installed by a professional who would have used an impact wrench themselves.
This tool is a really great idea, one that I had never seen or heard of until I began writing this article. It is exactly what it says it is: an emergency impact wrench. Just plug it into your cigarette lighter or power port (some will also connect to your car battery), and you’ve got yourself a pretty capable little impact wrench to remove and reinstall any lug nuts on your vehicle. Handy dandy.
At the time of this writing, there were a number of options available online, ranging from around $30 to as much as $100. HarborFreight.com offers the $30 option, which was the cheapest I found, but I didn’t find any reviews for it. The model offered on Amazon is a little more pricey, at $55. It doesn’t have many reviews – only two – but the ones that are there are very positive. One interesting feature of the Amazon offered model (the DigiWrench) was that you can digitally set the torque you want – cool.