Description: The DeWalt Combo Kit is ideal for almost any cutting, drilling or fastening applications. Improve productivity on the jobsite with innovative cordless solutions. 20V MAX tools are engineered to meet the specific needs of the most demanding trades. DCE100 has Max Air Flow of 100CFM. DCD771 has a high speed transmission that delivers two speeds (0-450 & 1500 rpm) for a range of fastening and drilling applications. Battery Voltage: 20 volts Features: Cordless, With Multiple Batteries Number of Tools: 10 piece