21V Brushless SDS-Plus Rotary Hammer – 3-in-1 Concrete Drill, Demolition & Impact Drill This cordless rotary hammer features a brushless motor for efficient performance and extended tool life. It operates in 3 modes: rotary drilling for wood and metal, impact drilling for concrete and masonry, and chisel mode for light demolition tasks. Key Features: 21V Brushless Motor: Delivers efficient power, runs cooler, and requires no brush replacement. 3 Operation Modes: Switch between drilling, hammer drilling, and chiseling in seconds. SDS-Plus Bit System: Tool-free bit changes—simply insert and lock. Compatible with all standard SDS-Plus accessories. Adjustable Impact Rate: Up to 4500 BPM with variable speed trigger for precise control. Drilling Capacity: 26mm in concrete, 13mm in steel, 30mm in wood. Two 4000mAh Batteries: Includes two high-capacity batteries for extended work time. BMS Protection: Built-in protection against overload, overheating, and short circuits. Anti-Vibration Design: Reduces user fatigue during extended use. 360° Auxiliary Handle: Provides better control and comfort. Before first use, fully charge both batteries for optimal performance.