We are engaged in the manufacture of ceilings to order from GVL. The main criterion for choosing was power and weight. This screwdriver, weighing 1 kg, has a capacious battery, 1.5 Ah, which allows you to turn the screws on the ceiling for a long time, without much stress on your hands. Includes 2 batteries. There are no shortcomings at all. If weight and power are important to you, then you simply will not find the best