Compressors

Powered by nothing more than the hard rush of high-pressure air, compressors can drive nails, sand wood, spray paint, or inflate the kids' pool.

DeWalt's Emglo has a 2-gallon tank and two built-in couplings, allowing a finish-nailing duo to build cabinets with assembly-line efficiency. A large front handle makes it easy to carry this 30-pounder, and at only 10 ½ inches tall, it's convenient to store. The tire inflator has a built-in gauge to check pressure as you fill up.

Compressor: 2.0 cfm at 90 psi; 3.0 cfm at 40 psi; 2-gallon tank; 79 decibels; approximately $200, Dewalt

Tire inflator: Approximately $21, Campbell Hausfeld