Makita DHR400T2N 18 V x 2 5 Ah LXT 1-9/16 inch rotary hammer kit. Runs on two 18 V Lithium Ion batteries (sold separately). Extreme Protection Technology (XPT) maximizes protection against dust, debris and liquids for optimal performance in extreme conditions. 2 operating modes: Rotation/Rotation + Hammer. Trigger-lock button prevents accidental start-up for increased safety. Torque limiter stops bit rotation if bit jams for increased operator safety and tool protection. Soft start feature gradually increases speed to eliminate start up shock. No load motor suppression limits vibration and bit deflection when idling. Variable speed dial allows operator to adjust speed based on materials or application. Constant speed control maintains constant speed under heavy load. One-touch SDS-MAX sliding chuck for easy bit installation and removal. Dual LED job light with pre-glow and after-glow features illuminates work area. Ergonomic soft rubber grip design for vibration absorption and comfortable operation. Includes straight (drilling) and D-style (demolition) handles.