What should always be used to ignite a cutting torch?

Using a striker to ignite a cutting torch is the safest and most effective method. A striker produces a controlled spark that can ignite the torch without the risks associated with open flames. This method minimizes the chance of unwanted ignition or flaring, which can occur with matches or lighters. Strikers are specifically designed for this purpose, ensuring that the ignition process can be carried out in a safer manner by allowing the operator to maintain a safe distance from the flame source during ignition.

Matches and lighters introduce an open flame that can be dangerous in a work environment where flammable gases are present, increasing the risk of accidental fires or explosions. Moreover, a generic flame source does not provide the targeted ignition needed for effectively starting a cutting torch. Therefore, relying on a striker is crucial for both safety and efficiency in metal cutting operations.