Rocker lugs are used for tightening with which tool?

• A. Screwdriver
• B. Spanner wrench
• C. Pliers
• D. Hammer

Answer: (B)

The practical idea is to pair the tool with the lug’s design so you can apply torque cleanly and securely. Rocker lugs are built to be turned by a spanner wrench, which uses pins or adjustable jaws that fit into the lug’s notches or holes. This lets you twist the lug evenly without rounding corners or slipping, which is essential for a proper seal and connection. Using a screwdriver won’t engage the lug’s features, pliers can slip or deform the lug, and a hammer isn’t capable of controlled tightening and can cause damage. So a spanner wrench is the right tool because it matches the lug’s design and provides safe, appropriate torque.