When installing copper tubing, which of the following tools is not needed?

When installing copper tubing, a copper stretching tool is not needed because it does not have a role in the standard processes associated with working with copper tubing. The key tasks typically involved in copper tubing installation include cutting, flaring, and bending.

A copper tubing cutter is essential for obtaining clean, precise cuts on the tubing, which is crucial for ensuring proper fittings and connections. The copper flaring tool is necessary to create a flare at the end of the copper tubing, which allows for secure connections with fittings. Additionally, a copper bending tool is used to shape the tubing, aiding in the installation process, especially in tight spaces or specific configurations.

In contrast, a stretching tool is not relevant in the typical context of copper tubing installation and repair. While there might be specific contexts in other fields where stretching a material is needed, it does not pertain to the standard techniques used with copper tubing. Therefore, the stretching tool does not contribute to the processes required for effective installation.