Hex Nut Drives Detail

A screwdriver-type handle for hand turning with a built-in female socket at the end of either metric or fractional inch sizes. May be of different lengths.
There are two main types of socket wrenches: impact sockets and hand sockets. Sockets are commonly colloquially referred to by counting the number of potential points of contact (pointed corners of walls) between socket and nut. Common designs include :

6 point, hexagon, for hexagonal nuts.
Variants include designs with curved (splined) faces for off nut corner contact, to reduce chance of stripping
12 point, (12 pointed star), for use with hexagonal nuts