Dewalt D25892K 22 lb. SDS MAX Demolition Hammer. Get fast, efficient chipping in the hardest concrete with the high-performance 22 lb. SDS MAX Demolition Hammer featuring durable German-engineered mechanisms. This tool is ideally suited for horizontal and downward facing chipping applications. Featuring 19.4 joules of impact energy and constant-speed electronics the 22 lb. SDS MAX Demolition Hammer maintains speed under load under tough conditions. Packaged with a convenient kit box, this Tag Ready™ product can be integrated with the TOOL CONNECT™ system.