THE D25481K 1-9/16"" SDS MAX COMBINATION HAMMER WITH OPTIMAL CONCRETE DRILLING OF 1/2"" - 1-1/8"". 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.