The AskMen editorial team thoroughly researches & reviews the best gear, services and staples for life. AskMen may get paid if you click a link in this article and buy a product or service. Whether you run an auto repair shop, construction business or any other operation that requires you to cut through some of the planet’s most hardy industrial materials, you’ve probably come across a plasma cutter or two. To put it simply, these impressive tools use a very hot, very fast jet of plasma to cut through electrically conductive materials, such as stainless steel and aluminum. To do this, an electric arc is sent through a gas —- hydrogen, nitrogen, argon, compressed air or others —- to elevate the gas’ temperature and turn it into the fourth state of matter: plasma. You may have used them before but never really thought about how they work or what different qualifications you might need to consider when buying one of your own, so we’re here to compare a few of the best you can find online. Whether you need a portable option to tote to the job site, or your DIY hobby requires you to cut intricate shapes with ease, these are the best plasma cutters to help ...