Gear like diagnostic equipment and specialized alternatives to the basic power tools you might find in the typical toolbox feature prominently in the workspace of an experienced mechanic.

We may receive a commission on purchases made from links. Most modern power tools use lithium-ion batteries. There's a whole host of reasons why these became the industry standard. They're much ...

Journal Editorial Report: The week's best and worst from Kim Strassel, Kyle Peterson, Allysia Finley and Dan Henninger. Photo: Rodin Eckenroth/Getty Images/U.S. Air Force/Reuters/Tim Warner/Getty ...