+ BL Motor delivers 1000 ft.lbs. of Max Torque and 1,400 ft.lbs of breakaway torque.+ 3-speed power selection switch (0-900/0-1,000/0-1,700 RPM & 0-1,800/0-2,000/0-2,200 IPM) provides precise fastening control.+ 3/4" anvil with friction ring for quick and easy socket changes.+ The BL Brushless Motor eliminates carbon brushes, enabling the BL Motor to run cooler and more efficiently for longer life.+ Efficient BL Brushless motor is electronically controlled to optimize battery energy use for up to 50% longer run time per charge.+++ To use DB-1850P battery for better performance.