Makita XT211MB 18V LXT Lithium-Ion Cordless 2-Pc. Combo Kit (4.0Ah) (Discontinued by Manufacturer) Variable 2-speed 1/2" Hammer Driver-Drill with Makita-built 4-pole motor delivers 480 in.lbs. of Max Torque and weighs only 4.0 lbs with battery Variable speed Impact Driver (0-2,300 RPM & 0-3,200 IPM) provides 1,420 in.lbs. of Max Torque and weighs only 3.3 lbs with battery 18V LXT Lithium-Ion 4.0 Ah battery BL1840 provides up to 35% more run time per charge Equipped with Star Protection Computer Controls to protect against overloading, over-discharging and over-heating 18-Volt LXT Lithium-Ion 4.0Ah battery BL1840B, features an integrated L.E.D. battery charge level indicator (for MB kits)