The BL Brushless motor eliminates carbon brushes, enabling the BL motor to run cooler and more efficiently for longer life. The electronically-controlled BL Brushless motor efficiently uses energy to match torque and RPM to the changing demands of the application. The XFD12Z combines 530 in.Of max torque with an efficient Brushless motor that delivers up 50% more work per charge, increased power and speed, and longer tool life. For the Pro user, this means more drilling and driving power, greater productivity, and fewer trips up and down the Scaffolding or ladder to get to the battery charger. In driver mode, the adjustable torque settings provide more control for a full range of applications, from large fasteners to smaller, delicate screws. It weighs only 3.4 lbs. The XFD12Z is compatible with Makita 18V LXT Lithium-Ion batteries, from the fast-charging 18V LXT compact 2.0Ah battery to full-size 18V LXT batteries for longer run time.