The MILWAUKEE? M18 FUEL? 1-9/16? SDS Max Rotary Hammer is the first to world 18V SDS Max cordless solution. By utilizing proprietary M18? and M18 FUEL? technologies, the 1-9/16? SDS Max rotary hammer is able to drill as fast as a corded SDS Max rotary hammer, 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 provides 50% more power and runs 50% cooler compared to M18? REDLITHIUM? XC battery packs, 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 SDS Plus to SDS Max, all powered by the M18? REDLITHIUM? batteries.