Which item is considered a potential hazard when handling explosives?

Using unapproved tools for the job is considered a potential hazard when handling explosives because such tools may not be designed to withstand the specific stresses and safety requirements associated with explosive materials. Properly approved tools are tested and certified to be safe for use with explosives, reducing the likelihood of accidents or malfunctions. Using tools that are not intended for this purpose can lead to unintended ignition, leading to explosive reactions, severe injuries, or fatal accidents. Ensuring that all tools used in explosive handling are approved and rated for the task is crucial for maintaining safety and preventing hazardous situations.