Designed for professional chipping, demolition and chasing applications with a variety of masonry materials including brick, concrete and stone, the DEWALT 21-pound SDS Max Demolition Hammer features a heavy-duty 14.0 Amp motor that protects against overload while delivering high-performance power. Other features include an SDS Max tool holder with rubber dampers for easy insertion and removal of SDS Max chisels, a chisel indexing dial for accurately rotating the chisel to any of 12 different positions, and an adjustable side handle that rotates 360-degrees. This heavy-duty hammer also features a non-air pumping beat piece and spring-loaded dust seals to prevent dust from entering the machine while in use.