T bars, also known as T-shaped handles, are a versatile tool used in a variety of applications. They are commonly used for tightening and loosening bolts and screws, and as a lever for opening or closing valves. T bars can be found in different materials such as steel, chrome, and aluminum. The term 'T bar' is often used interchangeably with 'T handle,' 'breaker bar,' and 'wrench handle.' Depending on the context, other synonyms for T bars may include 'socket wrench handle,' 'socket driver,' 'ratchet handle,' or 'extension bar.' The use of these synonyms may vary across different industries or regions, but they all refer to the familiar T-shaped tool that is essential for many DIY and industrial applications.