What Are the Types of Sockets?
2 Answers
Sockets can be classified into different specifications based on various criteria. In terms of size, they include 1/4, 3/8, and 1/2 specifications. By length, there are long sockets, short sockets, and E-type sockets. By appearance, they can be single-groove, double-groove, knurled, straight, nickel-plated, or chrome-plated. Applications of Sockets: They are used when the nut or bolt end is completely below the connected surface, and the diameter of the recessed hole makes it impossible to use an open-end wrench, adjustable wrench, or box-end wrench. In such cases, a socket wrench is required. Additionally, when there are spatial constraints around the bolt, only a socket wrench can be used. Components of a Socket: A socket set consists of multiple sockets with hexagonal or dodecagonal holes, along with various accessories such as handles and extension rods.
In this industry for over a decade, I've seen all kinds of sockets. By drive size, the most common are 1/4-inch, 3/8-inch, and 1/2-inch. The compact 1/4-inch is agile and perfect for phone-sized parts, the mid-sized 3/8-inch is ideal for daily engine bracket repairs, while the hefty 1/2-inch can handle the high torque of wheel bolts. By opening standards, there are metric (measured in mm like 8mm, 10mm) and imperial (fractions like 1/2-inch, 5/8-inch), often mixed when fixing imported cars. Depth-wise, shallow sockets suit regular screws, whereas deep ones cover protruding bolts like wheel axles. Specialty ones include impact sockets with reinforced walls for hammering, universal sockets that bend into engine gaps, and spark plug sockets with inner rubber to protect ceramic. Combined, these handle 90% of automotive disassembly tasks.