Final answer:
A combination wrench is a tool that combines two wrenches into one. It typically has an open-end wrench on one side and a box-end wrench on the other side. This provides versatility and convenience for users.
Step-by-step explanation:
A combination wrench is a tool that is made up of two wrenches combined into one. It typically consists of an open-end wrench on one end and a box-end wrench on the other end. The open-end wrench is designed to fit over a nut or bolt and provides a good grip on the fastener, while the box-end wrench has a closed loop that fits around the fastener for more secure turning.
For example, a combination wrench may have a 10mm open-end wrench on one side and a 12mm box-end wrench on the other side. This allows the user to choose the appropriate size for the fastener they are working on.
Using a combination wrench provides versatility and convenience, as it eliminates the need to switch between different wrenches when working on different fasteners of varying sizes.