The M18 FUEL 18V Lithium-Ion Brushless Cordless 1-9/16 in. SDS-Max Rotary Hammer (Tool-Only) is the first world 18-Volt SDS Max cordless solution. By utilizing proprietary M18 and FUEL technologies, the 1-9/16 in. SDS Max rotary hammer can 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.