For do-it-yourself car repairs, one of the tools that give you the most bang for your buck is an air impact wrench. It will help you do more with less physical effort and will provide the power you need to loosen nuts tightened by a professional mechanic or bolts that seem frozen in place.
The battery-powered versions of these tools on the market may eliminate the clutter and annoyance of electrical cords and compressor hoses but often can’t offer air-powered oomph.
But there’s a bewildering array of choices out there, and it’s often difficult to choose an option that fits your budget and your needs.
We’re going to take some of the guesswork out of that. All brands reviewed use half-inch sockets.