The Bosch GBH18V-20N 18V SDS-plus® 3/4 In. Rotary Hammer delivers an exceptional performance-to-weight ratio for anchoring in concrete, drilling in masonry, core cutting and chiseling. With 1.3 Ft.-Lbs. of impact energy and a no-load BPM rating of 0-4,550, this hammer works as hard as the user. It provides three modes of operation – rotary hammer, rotation only and hammer only. This hammer works with Bosch PRO+GUARD™ dust solutions, an end-to-end dust-collection system that helps users move toward OSHA Silica Table 1 dust compliance. At only 5.7 Lbs. (tool only, not including battery), it has an ergonomic design and soft-grip handle.The powerful rotary hammer requires a Bosch 18V 4.0 Ah battery or higher. It has Electronic Motor and Cell Protection to help protect the tool and battery from overload. This is a bare-tool kit; battery and charger are not included.