Which of the following tools are commonly used in lightning protection systems?

The choice that includes 'All of these' is the correct answer because lightning protection systems require a variety of tools to ensure proper installation, maintenance, and functionality. This includes an array of tools such as drills and wrenches for assembly and securing components, measuring instruments to ensure correct placement and distance measurements for proper grounding and bonding, as well as electrical testers to verify the integrity of the electrical connections and to check the effectiveness of the lightning protection system. This holistic approach to using multiple types of tools ensures that all aspects of lightning protection are adequately addressed, which is critical for the safety and effectiveness of the system.