The Einhell Brushless Impact Driver delivers more power and runs longer than a conventional motor. Tightening large and long screws is an effortless undertaking with the impact driver from Einhell. The impact driver comes with a ¼\" (6.35 mm) hexagon tool chuck. The finely adjustable electronic speed control can be precisely adjusted to your requirements for the material you wish to work on so that neither the material nor the impact driver are over strained. Supplied without the battery/charger but it is available separately.