Tire irons are the last thing you want to have to use when operating your vehicle. But when you need them they better work, and work well, and you better be able to find them. The only thing worse than standing in the rain or snow trying to change your flat tire is standing there with a lug wrench that doesn’t fit, doesn’t work or you can’t find. Tools supplied with your vehicle aren’t always reliable. When you finally figure out where they’re stowed and how to assemble them, all too often you’re pitifully undergunned for the task at hand. Here are three factors to consider to ensure you aren’t that guy.