The M18 FUEL? 1-9/16? SDS Max Rotary Hammer is the first to world 18V SDS Max cordless solution. By utilizing proprietary M18 FUEL? technology, the 1-9/16? SDS Max rotary hammer is able to drill as fast as a corded SDS Max rotary hammers, deliver corded durability, and provide over 20 minutes of continuous chipping. POWERSTATE? Brushless Motor delivers 5 ft-lbs of impact energy for the more demanding, heavy-duty applications. Including dry coring and medium duty chipping in both concrete block and reinforced concrete. Powered by the M18? REDLITHIUM? HIGH OUTPUT? XC8.0 battery pack which delivers up to 5X more run-time, 35% more power and runs 60% cooler than standard lithium-ion batteries, the 1-9/16? SDS Max rotary hammer delivers over 20 minutes of continuous chipping. It also includes REDLINK PLUS? Intelligence, the most advanced electronic system on the market, to prevent damage to the tool and battery from overloading and overheating.The M18 FUEL? 1-9/16? SDS Max Rotary Hammer is part of Milwaukee??s complete cordless rotary hammer solution, ranging from Compact SDS Plus to SDS Max, all powered by the M18? REDLITHIUM? battery system.