Engine: Gas Turbines

1. A 18-inch long 1/2-inch drive socket wrench.
2. B A socket wrench with an 18-inch long 3/4-inch drive extension.
3. C 18-inch long 3/4-inch drive socket wrench.
4. D A socket wrench with an 18-inch long 1/2-inch drive extension.

Tip: press A-D to answer