Metabo HPT (was Hitachi Power Tools) 18 Volt 1 4 in Variable Speed Brushless Cordless Impact Driver (1 Battery Included) Storage Solutions A: The DC motor is A: The DC motor is up to 70% more energy efficient compared to traditional AC motors 2760 20: 4 mode drive control provides greater control over output speed and power 5Ah battery) for reduced user fatigue when working overhead or with extended use POWER: Professional grade power with 1 hex drive TRIGGER: Optical trigger switch for a more responsive variable speed actuation and wear resistant trigger assembly LED: Illuminates dark work areas GRIP: Ergonomic grip