The DCH133NT 18V rotary hammer drill delivers 2.6 joules of impact energy. It can be used to drill holes up to a maximum of 26mm diameter in concrete. It has a brushless motor, which delivers more power and also longer runtime. We suggest this tool for all contractors, electricians, plumbers, HVAC installers, security and camera installers.Ideal for drilling anchor and fixing holes into concrete; brick and masonryRotation stop?mode for light chiseling in drywall; tiles and renderImpact stop only allows drilling executed in wood and metal