DESC: Makita built, D35 high torque motor delivers 50% faster cutting with a 1-1/8" stroke that cuts 2,900 SPM Compact design at only 19-5/8" length and weighs only 8.1 lbs. for less operator fatigue Ergonomic shape fits like a glove with even pressure and easy control LXT Lithium-Ion provides longer run time, 5x lower self-discharge (for use any time) and 16 firm holding contact terminals (for constant high power) 45-minute Optimum Charger and battery communicates throughout the charging process using the built-in chip in the battery and built-in CPU chip in the charger, Manufacturer: Makita