What is a common tool used for fitting and adjusting power transmission components?

The socket wrench is a common tool used in fitting and adjusting power transmission components due to its design and versatility. It consists of a ratchet mechanism and interchangeable socket attachments, which allow for efficient fastening and loosening of nuts and bolts of various sizes. This adaptability makes it particularly useful in the power transmission field, where components often come together with a range of bolt sizes and require precise adjustments.

The ability to quickly change sockets means that a millwright can easily access and service different components in machinery without the need for multiple tools, saving time and increasing efficiency. Additionally, the ratcheting feature of the socket wrench allows for continuous turning in tight spaces, which is often necessary when working with power transmission assemblies.

In contrast, while torque wrenches are specifically designed for measuring and applying a precise amount of torque to fasteners, they are not as versatile for general fitting and adjustment tasks. Pry bars are mainly used for leverage and prying, and hex keys, while essential for specific types of fasteners, do not provide the same range of application as socket wrenches.