The DEWALT SDS Plus rotary hammer with a power output of 900 watts is a versatile power tool for drilling, hammer drilling, and chiseling in concrete, masonry, stone, and other hard building materials. Designed for professional use and demanding renovation and assembly work, this tool combines a robust construction with balanced performance characteristics. With a 900-watt motor and a single impact energy of 3.0 joules, the rotary hammer delivers high impact force for typical construction and installation tasks. The pneumatic hammer mechanism ensures consistent power delivery, enabling efficient drilling even in resistant materials. This maintains a constant working speed, even under intensive use. The tool features three operating modes: drilling, hammer drilling, and chiseling. This versatility significantly expands its range of applications, allowing for precise drilling in wood or metal as well as powerful demolition and chiseling work in concrete or brick. Switching between modes is quick and easy. A key feature is the quick-change chuck system. In addition to the SDS-Plus chuck system, the interchangeable chuck mechanism allows for flexible switching between different tool types. This saves time and increases efficiency when frequently changing tasks. The ergonomic design promotes safe and controlled handling. The auxiliary handle improves stability during operation and makes working under heavy loads easier. At the same time, the balanced weight distribution helps reduce fatigue during extended use. The build quality meets DEWALT's professional standards. The robust housing and durable components are designed for regular construction site use and offer a long service life, even under demanding conditions. In terms of safety, the controlled power output ensures precise tool guidance. The stable construction and secure tool holder further contribute to reliable operation. Nevertheless, the use of appropriate personal protective equipment remains essential when working with this rotary hammer. Overall, the DEWALT SDS Plus 900 W is a powerful and versatile rotary hammer, suitable for a wide range of construction and assembly work thanks to its high impact force, three operating modes and practical quick-change system.