It essentially consists of a socket attached to a shaft and cylindrical handle and is similar in appearance and use to a screwdriver.
[1] They generally have a hollow shaft to accommodate a shank onto which a nut is threaded.
They are typically used for lower torque applications than wrenches or ratchets and are frequently used in the appliance repair[1] and electronics industries.
[2] Variations include T-shaped handles for providing the operator with a better grip, ratcheting handles, sockets with recessed magnets for holding fasteners, and flex shafts for bending around obstructions.
However, a spinner lacks the benefit of a hollow shaft; thus, a common alternative system is a single handle with interchangeable shafts in each size.