Black & Decker KR911 Information The Black & Decker KR911 is a powerful 910-watt rotary hammer drill that is perfect for a variety of applications, including drilling through wood, metal, and masonry. It features two speed settings, a reversing switch, and a built-in belt clip for easy portability. The KR911 also comes with a variety of accessories, including a drill bit set, a depth stop, and a carrying case. Introduction The Black & Decker KR911 is a versatile rotary hammer drill that can handle a variety of tasks. It is powered by a 910-watt motor that provides plenty of power for drilling through even the toughest materials. The KR911 features two speed settings, so you can choose the right speed for the job at hand. It also has a reversing switch that allows you to remove drill bits and other accessories easily.