Description: Multifunctional Power Tool: This heavy duty electric hammer drill is a versatile tool that combines the functions of a drill, hammer, and pickaxe. It delivers powerful impact and can groove red tiles, concrete, and cement with ease. The tool features a key switch for easy transition between different functions.Premium Motor: Equipped with a copper core motor, this power tool offers sturdy performance and high temperature resistance for an extended lifespan. The steel chuck ensures the drill head stays securely in place during working.Easy Adjustment and Cooling System: Switch between hammering and drilling modes quickly with just a key to suit different scenarios. The Cooling system ensures good ventilation for more stable motor performance.User Friendly Design: Drill Head installation is simple: press down on the red part, lift the black iron sleeve, and insert the drill head until you can not see its square part anymore. Carbon brush replacement is also easy, just open the cover with a screwdriver to replace it. Regularly check and add cream by unscrewing the cap with pliers.Technical Specifications: Operates at 2200W power, 110V, 50HZ frequency; it offers 0-930r/min speed and 3300min impact frequency. US Standard. Specification: Material:Electronic Component Color: Multicolor Size Chart: Package Size 41cmx35cmx12.5cm/16.14inchx13.78inchx4.92inch Package Includes: 1Hammer Drill(US Standard) with Accessories(Without Drill Heads) Note: Please allow slightly errors 1-2cm differences due to manual measurement.