The DEWALT 20-Volt Max Drill/Driver kit (DCD771C2) is designed with a high-performance motor that delivers 300 unit Watt out (UWO) of power. This compact, lightweight design can tackle a wide range of applications and features a 2-speed transmission and single sleeve ratcheting chuck. Backed by DEWALT's 3-year limited warranty, this versatile drill/driver comes complete with 2 lithium-ion batteries, charger and sturdy carrying case. The DCB240 20-Volt MAX 4 Ah compact lithium-ion battery provides the highest capacity within the DEWALT 20-Volt MAX compact battery lineup. Using state-of-the-art lithium-ion technology, the DCB240 delivers up to 1/3rd more run time while maintaining the same size and weight as the DCB230 20-Volt MAX 3 Ah compact battery. The DEWALT DCS391B 20-Volt Max Lithium-Ion Cordless Circular Saw has a powerful 5150 RPM motor that delivers power and speed to make the most demanding cuts with ease. The high strength and lightweight magnesium shoe provides job site durability for prolonged cut accuracy.