The Einhell TE-HD 18/20 Li Kit is a cordless rotary hammer that operates on the Power X-Change 18 V lithium-ion battery platform. This versatile tool features four operating modes: drilling, hammer drilling, chiseling with chisel stop, and chiseling without chisel stop. It delivers an impact energy of 1.8 J with a pneumatic hammer mechanism designed for efficient concrete drilling. The device achieves a maximum drilling capacity of 20 mm in concrete and operates with an idle speed of 0 to 1,300 rpm and a striking frequency of 0 to 4,750 blows per minute. Constructed with a robust metal gear drive system and SDS-plus chuck, this rotary hammer offers electronic speed control for precise work. The ergonomic design includes a soft grip handle and an additional ribbed auxiliary handle for secure handling during use. Integrated LED lighting illuminates the work area in low-light conditions. The kit includes a Power X-Change 4.0 Ah lithium-ion battery, a compatible charger, and a transport and storage case for organized tool management. This cordless solution provides mobility for construction and renovation work without access to power outlets, making it suitable for professional tradespeople and demanding DIY enthusiasts working with concrete, masonry, and similar materials.