The Wera Flexible Shaft Screwdriver is a high quality tool for quick access to hard-to-reach screws. The tool features a hexagonal design that prevents rolling and a quick-change chuck for quick change of 1/4” hex head bits. The multi-component handle has a combined structure: hard grip zones contribute to high working speeds, while soft zones transmit high torque. They transmit high tightening/loosening forces without losing contact with the screws. The precision zone on the blade provides a better feel for the angle of rotation with fine adjustment.