Makita XT248R 18V Compact Lithium-Ion Brushless Cordless Combo Kit (2 Piece)- Discontinued by Manufacturer (Discontinued by Manufacturer) 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 The electronically-controlled BL Brushless Motor efficiently uses energy to match torque and RPM to the changing demands of the application 2-speed 1/2" Hammer Driver-Drill (0-400 & 0-1,550 RPM) with BL Brushless Motor delivers 530 in. lbs. of Max Torque; weighs only 3.9 lbs. with battery 3-stage L.E.D. gauge indicates battery charge level