The D25899K 21 lb. SDS Max demolition hammer offers high performance without overheating and a non-pumping hammer mechanism to extend the tool and seal life by preventing dust from entering the device. A large rocker switch makes it easy to turn on and off. The powerful and durable 1500-watt motor delivers excellent concrete breaking performance. The large hammer mechanism ensures extreme durability and outstanding concrete breaking capability. The ergonomic inline design provides user comfort in every application. Compact, streamlined design. The quick-change chisel setting allows for fast chisel alignment through 12 preset positions. Multi-position adjustable side handle.