The Craftsman 12 mm socket， 6 point 3/8 inch drive sets the standard. This is an open stock socket that is part of a huge selection of both standard and metric tools. This inexpensive but powerful Craftsman 12 mm Socket， 6 point makes a great stocking stuffer and also makes a great birthday gift or Valentine's day gift for people who are starting a tool collection or who are filling in the missing sockets they need to create a full set.