Hayes Solenoid Spanner Wrench
The Hayes spanner wrench is used only when rebuilding Hayes style solenoid valves. This tool is used in conjunction with a crescent or open-ended wrench.

Skinner Solenoid Spanner Wrench
The Skinner spanner wrench is used only when rebuilding Skinner style solenoid valves. This tool is used in conjunction with a crescent or open-ended wrench.