What is the most important safety step when using a welding torch?

When using a welding torch, the most important safety step is to ensure that there is no oil present in the workspace. This is crucial because welding involves high temperatures that can ignite flammable substances. Oil and other combustible materials can easily catch fire, leading to dangerous situations, including fires and explosions.

Maintaining a clean workspace free from any oils or flammable liquids minimizes the risk of ignition, making it the top priority for safety. By ensuring that your area is clear of these materials, you create a safer environment for performing welding tasks. Other safety measures, such as wearing gloves, using a fire extinguisher, and ensuring a secure workspace, are important and contribute to overall safety, but they do not address the immediate risk posed by the presence of flammable materials.