The blade is precision-ground with a radiused, hollow-ground shape for strength and a parallel section to fit screw slots precisely, preventing damage to screws.
The long parallel shank matches the blade width, allowing for repeated regrindings and fits into narrow recesses, with a hex section for additional turning power.
Custom-designed handles offer a comfortable grip for control over large, tight screws and delicate tasks, with a uniform feel across all 20 screwdrivers in the set.