This drill/driver features a motor delivering up to 1 600 RPM that is perfect for getting through a variety of materials. The 2-speed gearbox coupled with the 24-position clutch means you can adjust the speed of the drill for the most accurate and precise drilling and driving. The on-board bit storage makes for an even more convenient tool by allowing you to carry spare bits so you’ll never be without one. This bundle also includes (2) 4.0 Ah batteries which provide 4x runtime versus the 1.5Ah.