-High performance rotary hammer drill with 4 functions: drilling, hammer drilling, chiseling،releasing -Ronix design according to industrial standard requirements and resistant material to garantee extreme long lifetime -Large capacity cylinder for stronger 3.5J impact energy and more efficiency -360° auxiliary Ronix-design handle -SDS Plus tool-free bit system with automatic bit locking mechanism -Lock button switch for comfortable working in continuous operations -Safety torque clutch system for high protection -Die-cast aluminum housing enables lightweight, superior heat dissipation and enhances body strength SDS Plus tool holder 3 function gearbox 360° rotating side handle with adjustable depth gauge Power - 850W Voltage - 220V Frequency - 50Hz No load speed - 5500RPM Impact joules - 3.5J