Makita - 18-Volt LXT Lithium-Ion Brushless Cordless 1/4 in. Impact Driver Kit -

Makita 18-Volt LXT Brushless tools are engineered for longer run time, increased power and speed, and longer tool life. The efficient Makita BL Brushless Motor is electronically-controlled to optimize battery energy use for up to 50% longer run time per charge. Electronic controls constantly monitor the changing demands of each application, regulating and adjusting the flow of current to the BL Motor in real time and delivering optimum energy output from the battery so you get increased RPM and torque when you need it. And with no carbon brushes, the BL Motor runs cooler and more efficiently for longer life. BL Motor tools are part of Makita's 18-Volt LXT line-up, with over 50 tools powered by one fast-charging 18-Volt Lithium-Ion battery.