Makita XRH01Z 18V LXT Lithium-Ion Brushless Cordless 1-Inch Rotary Hammer Accepts SDS-PLUS Bits Efficient BL Brushless Motor Efficient BL Brushless motor is electronically controlled to optimize battery energy use for up to 50% longer run time per charge The BL Brushless Motor eliminates carbon brushes, enabling the BL Motor to run cooler and more efficiently for longer life Compact and ergonomic design at only 12-7/8" long Weighs only 7.2 lbs. with battery (battery not included) for reduced operator fatigue