LXT Lithium-Ion battery and optimum charging system produces 280% total lifetime work with 2x more cycles Makita built, 4-pole maximum torque motor delivers 560 in. lbs. of efficient torque in a compact size Compact design at only 9-7/8" length and weighs only 4.9 lbs. for less operator fatigue Makita built, 4-pole maximum torque motor delivers 1,280 in. lbs. of efficient torque in a compact size 50% more compact design at only 5-3/4" long and weighs only 3.3 lbs. for less operator fatigue, Manufacturer: Makita