Hand sockets and sets use manual drive tools that are turned by hand to loosen or tighten fasteners. All-purpose sockets turn fasteners in a variety of applications while bolt extraction sockets remove stuck, rounded, and rusted nuts and bolts. Drum bung plug sockets install and remove drum bungs (plugs). Flex sockets are hinged in the middle and can fit fasteners in tight spaces. Insulated sockets protect against electrical shock from live electrical circuits while nonsparking sockets won’t spark during use. Specialty automotive sockets are for automotive tasks that involve nonstandard bolts and other fasteners.