This soft drill connecting shaft mainly used to narrow space, dead ends and other places that screwdriver is hard to work in, like computer chassis, electrical cabinets, furniture, electrical appliances, etc. The 1/4 inch hexagon drill bit connecting shaft fit drills well, suitable both ordinary hand drill and electric drill. Shaft is of great flexibility to bend, twist and straighten even in narrow confined space. Flexible shield protects your hands while the internal shaft rotates freely.