Makita BHR240 18-Volt 7/8-Inch LXT Lithium-Ion Cordless SDS-Plus Rotary Hammer Kit Makita-built variable speed motor delivers 0-1,100 RPM and 0-4,000 BPM for 2X faster drilling; a built-in torque limiter clutch disengages if the bit jams when hitting rebar 3 modes of operation with rotation only, hammering with rotation or hammering only; chisel rotates 360-Degree with 40 positions for more efficient drilling Compact design at 16-1/8-Inch-Inch long; weighs only 6.6-Pound. for reduced operator fatigue Makita LXT lithium-ion battery and charger produces 430% total lifetime work with 2.5X more cycles 3-Year warranty on tool; 1-Year warranty on batteries and charger.