The universal kress impact drill 850 bm 2 uses an 850 w maxxpower motor with integrated rotation reversing switch to deliver supreme performance in any materials a robust aluminium die cast gearbox provides excellent torque with 2 mechanical gears which allow you to switch between high torque or speed depending on your needs full wave speed control electronics give you the ability to adjust the drilling speed on the fly this guarantees precision and power exactly when you need it a handy sc