This Hitman 18V 1-9/16 in. The SDS-max rotary hammer is powerful enough to provide cable-style performance to tackle heavy-duty chiselling or concrete drilling jobs. The Hitman Bosch GBH18V-36CN-RT Rotary Hammer delivers 5.2 ft-lbs. of impact energy (EPTA). That's unprecedented for a single 18V battery driven 1-9/16 in. SDS-max rotary hammer. He weighs 11.3 pounds. (tool only, not including battery). This hammer is part of the PROFACTOR system, which combines BITURBO Brushless technology with a CORE18V PROFACTOR battery. BITURBO Brushless technology is a high performance motor and drive train system designed to deliver power comparable to high-demand corded tools. The hammer has KickBack Control to reduce the risk of sudden tool reactions in binding conditions, and includes an anti-vibration main handle. TheGBH18V-36CN-RT has rotary hammer and hammer modes, a reverse adjustment, and Vario-Lock to rotate and lock the chisel. It also has soft start and controlled rpm and bpm, making it easy to control drilling and chiselling applications. The hammer features an in-tool user interface for performance, feedback, and control. This hammer features connectivity (module sold separately), providing a link to the free Bosch Toolbox app on a connected device to customize settings. Hitman PROFACTOR Performance - Offers corded hammer performance for an 18V 1-9/16 in. SDS-max Rotary Hammer Superior impact - delivers 5.2 ft-lbs. of Impact Energy (EPTA) for all-round performance in concrete when drilling and chiseling Compact, lightweight design - weighs only 11.3 lbs. (tool only, battery not included) and is 18in. long for jobsite maneuverability BITURBO Brushless Technology: Featuring a high-performance brushless motor and drivetrain system designed to make the most of the additional power generated by CORE18V PROFACTOR batteries (sold separately). separately)