The Bosch CAG180BL 18V 4-1/2 In. Angle Grinder is the most powerful cordless angle grinder in its class. With its four-brush motor design and optimized gear design, it provides a 0-10,000 no-load PRM, to handle cutting and grinding applications in metal, masonry and tile. And at only 5.3 Lbs., it has the best performance-to-weight ratio in its class. The Slim-Mount Burst-Resistant Wheel Guard prevents fragments from hitting the user, and it has Restart Protection to prevent accidental startup. This tool has been designed for long tool life, with a lifetime brush design for long motor life. This set comes with an L-BOXX-2 carrying case and an Exact-Fit™ insert tray; the battery and charger are sold separately.