Bosch 11536C-2 36-Volt BBS Litheon Rotary Hammer,Bosch,11536C-2" /> 36V Lithium Ion; Max Diameter (Concrete) 3/4"; 0-1500 RPM; 0-4850 BPM; Vibration 10 m/s2 Lightest 36V hammer on the market at only 6.25 lbs Reduces vibration so user can drill longer with more comfort EC Motor - Brushless motor design means longer tool life and less maintenance, plus higher efficiency motor means longest run times 36V Litheon Technology - The most advanced Lithium Ion technology in the industry means the longest lasting batteries and lowest replacement costs