The three-sided geometry of the driver handle provides the leverage you need to generate high turning force by hand, while round sections at the front and back ends of the handle create an ideal shape for quickly spinning long fasteners
The overmolded grip is permanently bonded to the handle and won't degrade or become sticky over time
Bits are held onto the end of the driver by a magnet that’s friction-fit within the receiver so that it can’t fall out
The bits are made of S2 steel with a zinc-phosphate coating that resists corrosion, and they're designed to be longer than standard bits to improve your access to recessed fasteners