Nut Driver

A nut driver is a hand tool built to tighten or loosen nuts and bolts, shaped like a screwdriver with a hollow shaft and cylindrical handle that fits over a fastener head. It is generally used for lower torque work than a wrench or ratchet, and is common in appliance repair and electronics assembly. Nut drivers come in several forms, including T-handled, ratcheting, magnetized, and flexible-shaft versions, plus a spinner-handle variant that takes interchangeable sockets.