The Makita 18V X2 LXT Lithium-Ion (36 V) cordless 1 in. Rotary hammer (model XRH05Z, tool only) is powered by two 18V LXT batteries, delivering the power and run time for corded demands without leaving the 18V platform. With 3 joules of impact energy and 4,800 BPM, the XRH05Z rotary hammer is engineered to meet the demands of corded 1 In. drilling and hammering concrete applications without having to drag around a cord. Its part of Makita's expanding 18V Lithium-Ion series, the worlds largest cordless tool line-up powered by an 18V Lithium-Ion slide-style battery. Makita 18V Lithium-Ion batteries have the fastest charge times in their categories, so they spend more time working and less time sitting on the charger. For improved tool performance and extended battery life, Makita created STAR Protection computer controls. STAR Protection is communication technology that allows the star Protection-equipped tool and battery to exchange data in real time and monitor conditions during use to protect against overloading, over-discharging and overheating. For increased versatility, the tool can also be powered by Makita 18V LXT and compact Lithium-Ion batteries with the star symbol on the battery indicating STAR Protection inside. The XRH05Z rotary hammer delivers up to twice the drilling speed of 18V rotary hammers, with up to three times as many holes drilled. The XRH05Z has a 1 In. drilling capacity (accepts SDS-Plus bits) with 0-4,800 BPM, 0-1, 200 RPM, and a full 3.0 joules of impact energy. The XRH05Z has features common to Makita's broad line of rotary hammers including 3-mode operation, one-touch sliding chuck, and a torque limiting clutch engineered to prevent gear damage by automatically disengaging gears if the bit binds. The XRH05Z also has LED battery indicators that show the charge level for each 18V battery (batteries sold separately).