A corded hammer drill is a heavy-duty switch-hitter, allowing you to ram a hole into concrete or bore into wood with equal ease. It might sound like a pricey tool meant for contractors, but it's not.

Most notably, cordless drills are divided based on voltage into light-duty (12V) models and heavy-duty (18V or 20V) models. Within these categories, you’ll find drills with varying amounts of ...