This range of ergonomic, electric srewdrivers have fine toque control, lever start action and an ESD safe casing. They use a high end, brushless DC motor which offers improved durability and allows for a wider range of torque and higer speeds compared to dirvers with brushed motors.
Not only does a brushless motor make the driver more versitile, it also reduces the units weight and noise level. As there are no brushes to replace, the drivers require less down time and thus reduce maintenance costs. As brushless motors also have a much lower thermal resistance, they are able to work in wider temperature ranges, accelerate faster and have higher torque to inertia ratios. This means a much smaller motor can be used in these drivers then would traditionally be used if fitted with a brushed motor.