Makita XDT09Z 18V LXT Brushless 3-Speed Tool Only Impact Driver (Discontinued by Manufacturer) Quick-Shift Mode selector has an automatic electronic controller that downshifts and reduces rotation BL Brushless Motor delivers 1,550 of Max Torque Efficient BL Brushless motor is electronically controlled to optimize battery energy use for up to 50% longer run time per charge Extreme Protection Technology (XPT) is engineered to provide improved dust and water resistance for operation in harsh conditions 3-speed power selection switch (0-1,100 / 0-2,100 / 0-3,600 RPM & 0-1,100 / 0-2,600 / 0-3,800 IPM) provides the user with precise fastening control