If the car is finally ready to spray, it should look like this, disassembled, bodyworked, primered, block-sanded. The first step is to blow all dust off the car and out of every crevice. Do this ...

For the most part, air tools are a convenience, a great time saver. It's fun to buzz lugnuts off with an impact wrench, and air ratchets make quick work of a variety of underhood or undercar jobs, but ...