This Bosch Bulldog™ hammer provides superior performance and an outstanding impact-to-weight ratio. The GBH18V- 28C 18V Brushless 1-1/8 In. SDS-plus® Bulldog™ Rotary Hammer delivers 2.6 Ft.-Lbs. of impact energy (EPTA). It weighs only 7.3 Lbs. (tool only, not including battery). The hammer’s brushless motor maximizes battery runtime for extended performance. It has KickBack Control, which reduces the risk of sudden tool reactions in binding conditions, and an anti-vibration system featuring a built-in counter balancer. The ergonomic L-shaped design provides better control for both overhead and horizontal drilling applications. The 360-degree side handle provides a variety of grip positions for maximum ergonomics. The hammer features Vario-Lock to rotate and lock the chisel. This hammer features connectivity (module sold separately), providing a link to the free Bosch Toolbox app on a connected device to customize one of three different working modes (Auto, Favorite, Soft) to ensure the right setting for any job. And it has a user interface, which is an on-tool display helps manage tool performance for immediate feedback and control. The GBH18V-28C is compatible with an optional GDE18V-16 cordless dust-extraction unit (sold separately), delivering a self-contained dust solution for max mobility.