Your standard reciprocating saw, the ideal tool for cutting just about everything from pipes to plywood, can be unwieldy and heavy for everyday jobs. The new Cut Saw is nearly as powerful, but it’s easy to control with one hand and fits in tight spaces, such as under the sink. To squeeze big-tool power into a petite handheld, Black & Decker engineers replaced complicated levers and gearing with a simple planetary gear set and cam, enabling them to dramatically reduce the size of the reciprocating mechanism and make room for the battery and motor. Best of all, the saw accepts jigsaw blades, which are easy to find and can cut a variety of materials. $60; blackanddecker.com