Ultra-powerful SDS Max rotary hammer. Product description: A very powerful combination rotary hammer. Ideal for installers for serial drilling of electrical boxes, drilling for cables and pipes, and for wall installations when laying cable trays or installing air conditioning and ventilation systems. A sensitive safety clutch protects the tool and the operator when the drill bit jams in reinforced concrete. High power and selected high speeds significantly accelerate work. An impact of 20 J and a frequency of 2900 blows/min enable highly efficient drilling in hard and reinforced concrete (high-frequency vibrations crush the material most quickly). Fast drilling with SDS-max impact bits up to a diameter of 150 mm and twist drill bits up to 50 mm (no jamming of the drill spiral even with a large amount of material excavated). Smooth speed control.