Makita is the innovation leader in brushless motor technology and the 18-Volt LXT Brushless 2-Piece Combo Kit (model XT289PT) gives you 2 brushless solutions for drilling, driving and fastening. Each tool features an efficient Makita BL Brushless Motor that is electronically controlled for longer run time, increased power and speed and longer tool life. The combo kit includes a 1/2 in. Hammer Driver-Drill with a full 1,250 in. lbs. of Max Torque for the most demanding applications in wood, metal and masonry. The kit also includes a 7-1/4 in. Circular Saw delivers 5,100 RPM and features a large 2-9/16 in. cutting capacity at 90°. The 18-Volt LXT Lithium-Ion 5.0 Ah batteries have the fastest charge times in their category and for increased convenience they include an on-board LED charge level indicator. It's part of Makita's expanding 18-Volt Lithium-Ion series, the world's largest cordless tool line-up powered by 18-Volt Lithium-Ion slide-style batteries. Makita 18-Volt Lithium-Ion batteries have the fastest charge times in their categories, so they spend more time working and less time sitting on the charger. For improved tool performance and extended battery life, Makita created Star Protection Computer Controls. Star Protection is communication technology that allows the Star Protection-equipped tool and battery to exchange data in real time and monitor conditions during use to protect against overloading, over-discharging and overheating.