Amazon cut $42 off this DEWALT 20V Max tire inflator in a deal that'll keep your vehicle on on the road and your tires ...

PSI stands for pounds per square inch, the unit of measurement for tire pressure. When you hear your mechanic say your right tire's at 30 PSI, it means that's how much air pressure it has.

A tire inflator is an essential part of car's emergency kit, but you don't need to pay a premium price for a fancy one. Amazon is offering this AstroAI L7 cordless tire inflator bundled with an ...