New model with more power more comfort and less dust the bosch gbh18v 26f 18v ec brushless sds plus rotary hammer kit features a hammer that delivers corded like performance with cordless convenience the gbh18v 26 hammer was designed with an efficient ec brushless motor which offers 50 percent more impact energy and greater tool runtime than previous generation cordless hammers the tool weighs only 63 lbs tool only not including battery but delivers 19 ft lbs of impact energy for an outstanding