Hard to say, my 8″ kdrill with adapter to fit ion head comes in at 20 lbs. The ion originally was outfitted with the ion 6″. But all in all I love my setup and have even been leaving the ion battery connected out in the cold for hours, even overnight, and it still drilled effortlessly through 16″ ice. Nightine temps were low 20s. I’m testing g its limits and have the luxury of a warm spare battery if it does struggle or stops working.