Cordless drill/drivers
To say that a drill/driver is an indispensable home-improvement tool is no exaggeration. It accomplishes basic tasks like drilling holes in wood, metal, and masonry, and when fitted with the right bit, lets us drive screws and other fasteners into those holes, and back them out.
Today’s models have come a long way since the first portable drills for homeowners were introduced in the early 1920s. Back then, they weighed more than 5 pounds, were tethered to a cord, and, if the bit grabbed, could break your wrist as the drill spun in reverse.
That danger largely disappeared with the introduction of torque-limiting chucks, enabling drills to drive screws—and become known as drill/drivers.
Cords have largely disappeared, too. There are now dozens of cordless versions that utilize the latest in lithium-ion batteries and sophisticated electronics, providing more power, longer
