What distinguishes a cutting torch from a welding torch?

A cutting torch is distinguished from a welding torch primarily by its design and functionality related to gas control. The presence of a separate oxygen control is crucial because it allows the user to adjust the oxygen flow independently from the fuel gas (typically acetylene) when cutting metal. This capability is essential for generating the high-temperature flame needed to ignite the metal and sustain the cutting process.

In contrast, welding torches are designed to combine both the fuel and oxygen in a manner that produces a stable flame suitable for joining metals rather than cutting through them. The specific arrangement of controls in a cutting torch enables it to reach the necessary temperatures for effective cutting while maintaining precision in oxygen mixture, which is vital to achieve clean cuts and proper metal penetration.

The other options, while they may describe features relevant to cutting or welding torches, do not encapsulate the primary distinguishing characteristic between the two tools in the context of oxyfuel processes.