The Trend
Companies are rolling out lithium- ion cells-old hat in mobile phones-with enough juice to feed amp-hungry power tools.

Why Now
Engineers have tweaked the
li-ion recipe and added circuit boards that monitor cells to prevent batteries from exploding.

How You'll Benefit
Li-ion tools offer 40 percent more power per pound than those using nickel-based batteries.

Hand tools for turning nuts and extracting nails can be a man’s best friend—or foe. These innovative new grippers are designed to deliver unparalleled leverage and versatility, making it easier than ever to squeeze into tight spots to dislodge a rusted nut or extract a headless nail.