"The DEWALT 20V Max Li-Ion Brushless Premium Impact Driver is built with a brushless motor that works more efficiently compared to brushed motors and provides significantly more run time in a smaller, cooler running cordless power tool. Driver also features 3-speed design to tailor the speed and torque to the application, a pushbutton chuck for easy one-handed bit changes, 3 LED lights, 3.0Ah premium batteries with built-in fuel gauge and more. Chuck Size in. 1/4, Max. Speed RPM 0-950/0-1,900/0-2,850, Charger Included Yes, Battery Type Lithium-ion, Battery Amp/Hour 3.0, Max. Torque ft.-lbs. 42/75/125, Storage Type Plastic case, Batteries qty. 2, Tool Weight lbs. 3.6, Volts 20. Brushless motor runs cooler and with less friction than a brushed motor to delivers maximum run time Compact 5.25in. front to back to fit into hard-to-reach spaces 3-speed design for application-specific control 0-950 RPM 42 ft.-lbs. max. torque 0-1900 RPM 75 ft.-lbs. max. torque 0-2850 RPM 125 ft.-lbs. max. torque Impact mode 0-1300, 0-2400, 0-3300 IPM Variable speed trigger with reverse 1/4in. pushbutton chuck for one-handed operation 3 LED lights around chuck with 20-second delay after trigger release 3 LED lights provide visibility with limited shadows Battery fuel gauge indicator with 3 LEDs provide user with guidance about level of available runtime in battery pack"