The 1-9/16" SDS Max Combination Hammer, with its durable and hard hitting German engineered mechanism delivers 6 joules of impact energy for fast drilling, even in the hardest concrete. The light weight design makes it ideally suited for horizontal serial drilling for #4 - #8 rebar, coring and chipping in any mid to upper wall and ceiling application. The Active Vibration Control® technology employed delivers reduced user vibration for less user fatigue and greater productivity.