What is a spammer wrench used for?

• A. To tighten or loosen hose couplings, and can also be used as a prying tool or gas key
• B. To cut hoses
• C. To measure water pressure
• D. To pry open metal boxes

Answer: (A)

A spanner wrench is the tool firefighters use to work hose couplings. It’s designed to engage the flats or lugs on hose couplings, giving you the torque needed to tighten or loosen connections quickly and without damaging the fittings. Its leverage also makes it handy as a prying tool to free stuck fittings or to pry lids, and in some field situations it can double as a gas key to operate a valve when a standard valve key isn’t available. This is why it’s the best answer—the other listed tasks require different tools: cutting hoses, measuring water pressure, or prying open metal boxes are not done with a spanner wrench.