C-Pioneer 295mm Flexible Shaft Bit Extension Screwdriver Drill Bit Holder Connecting Link This Flexible shaft can be used for general formula hand drill chuck it can also be used for electric screwdriver screwdriver Flexible shaft head can be mounted hexagonal shank (1/4 handle) the first batch mainly used in computer chassis, electrical cabinets, furniture, electrical appliances Package include: 1 x Flexible Shaft Drill Bit Holder